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Advantages and Disadvantages of Angular

What is Angular? Angular is a frontend web application development framework based on TypeScript, built by folks at Google and heavily contributed to by a huge community of developers around the world. It is a Single Page Application (SPA) framework, which means that Angular is capable and is primarily used to build single page web applications or SPAs.Angular logoAngular is developed by the same team of individuals that developed the popular framework AngularJS. The modern Angular requires you to have knowledge of the Typescript language which is a strict syntactical superset of JavaScript and adds optional static typing and some other features to the language that otherwise JavaScript lacks. The AngularJS framework was re-written and called "Angular 2", but this led to a lot of confusion and panicwithin the developer community. To clarify, the Angular team started to use separate terms for each framework. At this point, "AngularJS" now referred to the 1.X versions and "Angular" without the "JS" referred to versions 2 and up. Since then, all the versions of the framework other than 1.X are just called Angular. You can, however, mention the version number to be more precise. TypeScript is designed for development of large applications and transpiles to JavaScript. As TypeScript is a superset of JavaScript, existing JavaScript programs are also valid TypeScript programs. So, you can still use JavaScript in your TypeScript code files, but please do not do that. In this article, we will take a closer look at how Angular has evolved into one the mostpopular web development frameworks and understand its pros, cons, features and more. We will leave you with a few quick tips and suggest how you can get started with understanding Angular indepth to achieve mastery over the subject. History of Angular AngularJS was the first version of the framework, created by Google, that first came out in 2010and it shook the developer community. There were so many amazing features that AngularJS offered. Most talked and loved of all the features that it offered was two-way binding between the view and the model.  So, it let us developers get rid of a lot of useless code to set up bindings and keep the view and model in sync at all times. AngularJS was golden. AngularJS became very popular within the developer community and was widely adopted.It received a lot of traction. Still, the team decided to take another step further and developed a new version which was initially named Angular 2 but later was called Angular without the “JS” part. Soon after, in 2014, Angular 2.0 was announced which was a complete rewrite of the framework from scratch and unlike AngularJS that used JavaScript as the primary language, it used TypeScript. A final version of the framework, Angular 2, was released in 2016. Later, it was renamed to Angular to avoid conflicts and confusions within the developer community.  A lot of new changes were brought in and developers had to learn it all over again which was a tough change but was welcomed by the community. Angular opted for semantic versioning and from now on, all versions of Angular will just be called Angular. Near the end of 2016, Angular 4 came out (yeah, they skipped Angular 3 to avoid some conflicts and confusions). With a few more major versions and performance upgrades in each version, we have now arrived (at the time of writing of this article) to Angular 9.  Angular 9 has better than ever performance and latest features. In these intermediate versions, there have been updates to the performance, CLI features, progressive-web app features, router, and a lot more. They even upgraded to a better rendering engine in Angular 9. Angular 10, a major upgrade to the popular web development framework, has reached the release candidate stage, with six release candidates published as of June 17, 2020. The upgrade to the Google-developed, TypeScript-based framework focuses more on ecosystem improvements than new features. Advantages of Angular Angular hascome a long way since 2012. There are benefits to using the framework and there are some drawbacks as well, especially if you are a beginner. Let us talk about the good things first. Maintained by Google The best things about Angular is that it is developed and maintained by Google. As it is backed by a trusted company, trust is well established within the community. Developers believe in the framework and in the fact that it will be maintained, and issues will be resolved, of course withthe help of community contributions. Large community and ecosystem Angular is actively maintained and has a large community and ecosystem. You can find lots of material on this framework as well as many useful third-party tools. Currently, Angular has around over 63K stars on GitHub, a clear indication of the popularity of the framework. Github   Two-way Data binding Two-way data binding in Angular will help users to exchange data from the component to view and from view to the component. It will help users to establish communication bi-directionally. Two-way data binding can be achieved using a ngModel directive in Angular. This ensures that the model and the view are always kept in sync without any extra effort. Use of TypeScript Angular opted for TypeScript as the primary programming language. TypeScript adds a lot of syntactic sugar to JavaScript. With TypeScript, we also get several productivity benefits. In editors like VS Code and WebStorm, we have access to robust code help (intellisense) as we type, making it easier to discover types, the features they offer, and most importantly the common syntactical errors.TypeScript is a typed superset of JavaScript that compiles to plain JavaScriptSupport for i18n Internationalization is the process of making sure that an application is designed and prepared to be used in regions with different languages. Localization is the process of translating your internationalized app into specific languages for particular locales. Angular can take care of most things when it comes to multiple languages. Dates, numbers, times, and other things are easily taken care of based on the locale. On top of that, the Angular CLI allows us to install the @angular/localize package and generate most of the boilerplate code necessary. Support for lazy loading An Angular module is a logical unit of code that performs a certain task or takes care of a certain responsibility in the application. A normal Angular application can be broken down into multiple modules, where each module is delegated a certain responsibility. A module can comprise of components, pipes, directives or more modules.  Breaking down an application into modules not only allows to easily manage an application as it grows, but also offers huge performance advantages. Instead of loading all the application code at once in the browser which may cause more loading time and a slower initial render of the web page, it loads only what is necessary. This is called lazy loading.  Only the modules that are required are loaded initially and more modules or rather chunks of code are loaded as an when required. This offers seamless performance and smaller loading times. Every Angular app has at least one NgModule class, the root module which is responsible to bootstrap the project. Conventionally, it is named AppModule and itresides in a file named app.module.ts.  Dependency injection Dependency injection or DI is one of the most important application design patterns and Angular has its own dependency injection framework. It is typically used in the design of Angular applications to increase their efficiency and modularity. This is closely related to the previous point - modularization of the Angular app.   Dependencies are services or objects that a class needs to perform its function. The class requests services from an external resource, generally another module or class in this case, instead of creating them themselves. This allows us to delegate single responsibility to each module. The advantage of dependency injection design pattern is to divide the task into multiple services. The class will not create the dependent object itself, rather it will be created and injected by an Angular injector. Dependency Injection is technique that is used to reduce the coupling amongst various components of an application. Looser coupling allows for better testability and maintainability. Powerful Router Routing or in-app navigation in Angular is taken care of by the Angular Router. It is a module available in the @angular/router package. Angular router is a very powerful and flexible navigational service. It usesa component called router-outlet to load various components into the view depending upon the URL in the browser.  Angular Router has built-in support for lazy loading components, so the modules are loaded from the server as the user navigates within the app. Huge apps have a lot of benefits because of this feature.  Support for Ionic Angular was the first framework that was supported by the Ionic framework. It allows building cross-platform mobile applications for Android and iOS using the Ionic components and Angular code. As of now, more frameworks like ReactJS and VueJS are also supported but still, Angular is widely used with the Ionic framework for mobile application development.Angular is widely used with the Ionic framework for mobile app developmentAvailability of packages There is a huge repository of open-source packages available for Angular developers. Some of the most important packages are NgBootstrap, Angular Google Maps, NgRx, NgTranslate, AngularFire, NgxTextEditor, Angular Material, Ng2 Pdf Viewer, NgxCharts, and many more. Some of these packages are maintained by the official Angular team and most of these are taken care of by the community of developers as well. It is most likely that if you are looking to build a complex feature or a component for your application, a package already exists for you, so why reinvent the wheel? Disadvantages of Angular So, we have seen the good things about Angular, but there is another side to the story as well. Let us talk about some of the downsides of using one of the most popular web development framework. Steeper learning curve While Angular is great, it may not be the case for a complete beginner. Even if you have experience with HTML, CSS and JS, you may feel a little bit uncomfortable with the steep learning curve that it has. It brings its own notions and philosophy to the table that you need to work around.  Angular is an opinionated framework which means that it has its own rules that developers need to learn and follow. This can be a good and a bad thing, but the learning curve can be uncomfortable for total beginners. I would recommend that you stay patient and start slow. Slow and steady! Limited SEO Capabilities Angular is just great for building powerful single-page web applications. However, as with all single-page web applications, there is a disadvantage when it comes to search engine optimization.   Usually single-page applications are rendered on the client side and therefore web crawlers of search engines like Google and Bing are not able to see the complete structure and content of the individual pages of the websites. With this limitation in place,it is not possible to list your website correctly in search engine results.  However, there are techniques and packages to make this work, but it is an extra effort in terms of development. Angular universal is a way to render the Angular application of the server itself. The technology enables server-side rendering for Angular applications. Angular Universal generates static application pages on the server through a process called server-side rendering. While Angular universal takes care of most aspects, it still requires a lot of setup. If you prefer to do it all manually, there are documents available to help you do that but there are gotchas that you need to watch out for. Too many versions Angular has been evolving. It started out as a JavaScript framework AngularJS and now the current version is Angular 9 with a total of 6 major releases in between. This can cause confusion especially for beginners. Many a time, beginners struggle to understand the versioning. I have seen students learning a version of the framework, latest at the time, and by the time they finish their first project, a new major release is out. This causes trust issues. Developers, at times, feel that they must keep working on their apps and resolve version conflicts and compatibility issues. Decline in popularity With the advent of newer frameworks like VueJS and ReactJS, Angular has seen a downfall in its popularity. Just a few years ago, developers were mainly debating on whether they should be using Angular or React for their projects. But over the course of the last couple of years, we saw a growth of interest in a third player called VueJS or Vue.js. While the job market in Angular continues to expand, it has been observed that the popularity of the framework has been declining. I believe that too many versions is one of the main issues that the framework needs to address. Lot of boilerplate code If you are building a simple app, there is a lot of boilerplate code that the application requires. Although with tools like StackBlitz, it has become easier to try code ideas and experiment without having to install anything on your computer, but if you decide to start developing an Angular app on your system, you need to install a bunch of things and the most simple “Hello World!” application will have a lot of code that you do not care about. What’s new in Angular 9? Let us take a closer look at what is in store for us in the Angular 9 version of the framework. We will delve into the latest version of Angular 10, released in June 2020, in a separate blog post. Step-by-step guide The official Angular website offers a step-by-step guide on how to upgrade your existing apps to the latest version. GuideIvy, the next-gen compilation and rendering engine Ivy is the code name for Angular's next-generation compilation and rendering engine. With the version 9 release of Angular, the new compiler and runtime instructions are used by default instead of the older compiler and runtime, known as View Engine. You can, however, disable Ivy if you still want to use View Engine for your app. It is a huge milestone for the framework. Ivy offers faster build times and small build sizes. It also offers a new change detection system.The important point is that we don’t have to change how we write our applications. Ivy aims to be compatible with the existing applications. Ivy is going to be smaller, simpler, and faster as quoted by the Angular team.  In the demo shown by Miško Hevery, the creator of the AngularJS framework,in ngConf 2018, the Hello World application was merely 3.2KB which is significantly small although 3.2KB is the result after minification + gzip.Total bundle SizeIvy compiles one file at a time and therefore follows the locality principle. Ivy looks at a component's template when generating the compiled output. This process leads to faster compilation. Ivy makes sure that, if you are not using something in Angular, it does not get included. Since Ivy pipelining is simplified, templates will be part of the stack trace.  No more cryptic error messages when something is broken in our template syntax as we will see the exact line number where the error is. The Ivy compiler has been designed to remove parts of Angular code that aren’t being used via a mechanism called tree-shaking and to generate less code for each Angular component. With these improvements, small apps and large apps can see the most dramatic size savings. Angular ahead-of-time (AOT)  In Angular 9, AOT is enabled for Dev build as well. The Angular ahead-of-time (AOT) compiler converts your Angular HTML and TypeScript code into efficient JavaScript code during the build phase before the browser downloads and runs that code.  Compiling your application during the build process provides a faster rendering in the browser. AOT allows faster rendering of the application and also makes sure that there are a lot less asynchronous requests. According to the docs, AOT compilation with Ivy is faster and should be used by default. Lazy loading components Before Angular 9, we could only lazy load modules. Now, you can also lazy load components. It is a great way to shrink the size of your main bundle and boost the initial load of your application. Lazy loading of single components has not been possible so far. But things have changed with Ivy.  Works with TypeScript 3.6 and 3.7 The latest version of the TypeScript is 3.7 and Angular 9 is updated to work with TypeScript 3.6 and 3.7. Angular 9 supports usage of the same TypeScript Diagnostics format for the TypeScript Compiler diagnostics, which will generate more descriptive error messages. According to the official docs - “In TypeScript 3.7, when opening a project with dependencies, TypeScript will automatically use the source . ts / . tsx files instead. This means projects using project references will now see an improved editing experience where semantic operations are up-to-date and “just work”. SupportscCSS variables or custom properties Angular 9 supports CSS variables or custom properties. CSS variables or custom properties allowsdevelopers to define their own variables for CSS values that can be shared between components and style rules.  CSS custom properties or CSS variables allow the CSS property values to be changed at runtime. The possibility that the CSS custom properties can be updated during runtimeopens the opportunity to easily create themes for newer Angular application.  Angular:Quick tips and facts Angular is a framework used for front-end development. This involves the client-side of the application and has little to do with the back end. Angular is best utilized for completing advanced, large-scale projects under the direction of a seasoned developer. Angular is created for enterprise-scale applications. Angular elements can be added to projects that were built using a different platform, such as React or Polymer. Angular is supported by Google. This program is not up to par with SEO best practices, so if your primary focus is search engine optimization, opt for a different platform. Angular is a JavaScript framework—not a JS Library.Angular ranked second in “most used technology” in the Stack Overflow Survey of 2018.  How to get started with Angular?Are you ready to take on the best and become a master of the Angular framework? Check out the Angular Training and Certification which comes with instructor-led live training and real-life project experience.  This training will help you understand Angular in-depth and help you achieve mastery over the subject. Master Angular programming with our in-depth online courses. Explore them now!
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Advantages and Disadvantages of Angular

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Advantages and Disadvantages of Angular

What is Angular? 

Angular is a frontend web application development framework based on TypeScript, built by folks at Google and heavily contributed to by a huge community of developers around the world. It is a Single Page Application (SPA) framework, which means that Angular is capable and is primarily used to build single page web applications or SPAs.

Angular logoAngular logo

Angular is developed by the same team of individuals that developed the popular framework AngularJS. The modern Angular requires you to have knowledge of the Typescript language which is a strict syntactical superset of JavaScript and adds optional static typing and some other features to the language that otherwise JavaScript lacks. 

The AngularJS framework was re-written and called "Angular 2", but this led to a lot of confusion and panicwithin the developer community. To clarify, the Angular team started to use separate terms for each framework. At this point, "AngularJS" now referred to the 1.X versions and "Angular" without the "JS" referred to versions 2 and up. Since then, all the versions of the framework other than 1.X are just called Angular. You can, however, mention the version number to be more precise. 

TypeScript is designed for development of large applications and transpiles to JavaScript. As TypeScript is a superset of JavaScript, existing JavaScript programs are also valid TypeScript programs. So, you can still use JavaScript in your TypeScript code files, but please do not do that. 

In this article, we will take a closer look at how Angular has evolved into one the mostpopular web development frameworks and understand its pros, cons, features and more. We will leave you with a few quick tips and suggest how you can get started with understanding Angular indepth to achieve mastery over the subject. 

History of Angular 

AngularJS was the first version of the framework, created by Google, that first came out in 2010and it shook the developer community. There were so many amazing features that AngularJS offered. Most talked and loved of all the features that it offered was two-way binding between the view and the model.  

So, it let us developers get rid of a lot of useless code to set up bindings and keep the view and model in sync at all times. AngularJS was golden. AngularJS became very popular within the developer community and was widely adopted.It received a lot of traction. Still, the team decided to take another step further and developed a new version which was initially named Angular 2 but later was called Angular without the “JS” part. 

Soon after, in 2014, Angular 2.0 was announced which was a complete rewrite of the framework from scratch and unlike AngularJS that used JavaScript as the primary language, it used TypeScript. A final version of the framework, Angular 2, was released in 2016. Later, it was renamed to Angular to avoid conflicts and confusions within the developer community.  

A lot of new changes were brought in and developers had to learn it all over again which was a tough change but was welcomed by the community. Angular opted for semantic versioning and from now on, all versions of Angular will just be called Angular. 

Near the end of 2016, Angular 4 came out (yeah, they skipped Angular 3 to avoid some conflicts and confusions). With a few more major versions and performance upgrades in each version, we have now arrived (at the time of writing of this article) to Angular 9.  

Angular 9 has better than ever performance and latest features. In these intermediate versions, there have been updates to the performance, CLI features, progressive-web app features, router, and a lot more. They even upgraded to a better rendering engine in Angular 9. 

Angular 10, a major upgrade to the popular web development framework, has reached the release candidate stage, with six release candidates published as of June 17, 2020. The upgrade to the Google-developed, TypeScript-based framework focuses more on ecosystem improvements than new features. 

Advantages of Angular 

Angular hascome a long way since 2012. There are benefits to using the framework and there are some drawbacks as well, especially if you are a beginner. Let us talk about the good things first. 

Maintained by Google 

The best things about Angular is that it is developed and maintained by Google. As it is backed by a trusted company, trust is well established within the community. Developers believe in the framework and in the fact that it will be maintained, and issues will be resolved, of course withthe help of community contributions. 

Large community and ecosystem 

Angular is actively maintained and has a large community and ecosystem. You can find lots of material on this framework as well as many useful third-party tools. Currently, Angular has around over 63K stars on GitHub, a clear indication of the popularity of the framework. 

Angular is one of the most popular frameworks

Github   

Two-way Data binding 

Two-way data binding in Angular will help users to exchange data from the component to view and from view to the component. It will help users to establish communication bi-directionally. Two-way data binding can be achieved using a ngModel directive in Angular. This ensures that the model and the view are always kept in sync without any extra effort. 

Use of TypeScript 

Angular opted for TypeScript as the primary programming language. TypeScript adds a lot of syntactic sugar to JavaScript. With TypeScript, we also get several productivity benefits. In editors like VS Code and WebStorm, we have access to robust code help (intellisense) as we type, making it easier to discover types, the features they offer, and most importantly the common syntactical errors.

TypeScript is a typed superset of JavaScript that compiles to plain JavaScriptTypeScript is a typed superset of JavaScript that compiles to plain JavaScript

Support for i18n 

Internationalization is the process of making sure that an application is designed and prepared to be used in regions with different languages. Localization is the process of translating your internationalized app into specific languages for particular locales. Angular can take care of most things when it comes to multiple languages. Dates, numbers, times, and other things are easily taken care of based on the locale. On top of that, the Angular CLI allows us to install the @angular/localize package and generate most of the boilerplate code necessary. 

Support for lazy loading 

An Angular module is a logical unit of code that performs a certain task or takes care of a certain responsibility in the application. A normal Angular application can be broken down into multiple modules, where each module is delegated a certain responsibility. A module can comprise of components, pipes, directives or more modules.  

Breaking down an application into modules not only allows to easily manage an application as it grows, but also offers huge performance advantages. Instead of loading all the application code at once in the browser which may cause more loading time and a slower initial render of the web page, it loads only what is necessary. This is called lazy loading.  

Only the modules that are required are loaded initially and more modules or rather chunks of code are loaded as an when required. This offers seamless performance and smaller loading times.
 
Every Angular app has at least one NgModule class, the root module which is responsible to bootstrap the project. Conventionally, it is named AppModule and itresides in a file named app.module.ts.  

Dependency injection 

Dependency injection or DI is one of the most important application design patterns and Angular has its own dependency injection framework. It is typically used in the design of Angular applications to increase their efficiency and modularity. This is closely related to the previous point - modularization of the Angular app.  
 
Dependencies are services or objects that a class needs to perform its function. The class requests services from an external resource, generally another module or class in this case, instead of creating them themselves. This allows us to delegate single responsibility to each module.
 
The advantage of dependency injection design pattern is to divide the task into multiple services. The class will not create the dependent object itself, rather it will be created and injected by an Angular injector. Dependency Injection is technique that is used to reduce the coupling amongst various components of an application. Looser coupling allows for better testability and maintainability. 

Powerful Router 

Routing or in-app navigation in Angular is taken care of by the Angular Router. It is a module available in the @angular/router package. Angular router is a very powerful and flexible navigational service. It usesa component called router-outlet to load various components into the view depending upon the URL in the browser.  

Angular Router has built-in support for lazy loading components, so the modules are loaded from the server as the user navigates within the app. Huge apps have a lot of benefits because of this feature.  

Support for Ionic 

Angular was the first framework that was supported by the Ionic framework. It allows building cross-platform mobile applications for Android and iOS using the Ionic components and Angular code. As of now, more frameworks like ReactJS and VueJS are also supported but still, Angular is widely used with the Ionic framework for mobile application development.

Angular is widely used with the Ionic framework for mobile app developmentAngular is widely used with the Ionic framework for mobile app development

Availability of packages 

There is a huge repository of open-source packages available for Angular developers. Some of the most important packages are NgBootstrap, Angular Google Maps, NgRx, NgTranslate, AngularFire, NgxTextEditor, Angular Material, Ng2 Pdf Viewer, NgxCharts, and many more. Some of these packages are maintained by the official Angular team and most of these are taken care of by the community of developers as well. It is most likely that if you are looking to build a complex feature or a component for your application, a package already exists for you, so why reinvent the wheel? 

Disadvantages of Angular 

So, we have seen the good things about Angular, but there is another side to the story as well. Let us talk about some of the downsides of using one of the most popular web development framework. 

Steeper learning curve 

While Angular is great, it may not be the case for a complete beginner. Even if you have experience with HTML, CSS and JS, you may feel a little bit uncomfortable with the steep learning curve that it has. It brings its own notions and philosophy to the table that you need to work around.  

Angular is an opinionated framework which means that it has its own rules that developers need to learn and follow. This can be a good and a bad thing, but the learning curve can be uncomfortable for total beginners. I would recommend that you stay patient and start slow. Slow and steady! 

Limited SEO Capabilities 

Angular is just great for building powerful single-page web applications. However, as with all single-page web applications, there is a disadvantage when it comes to search engine optimization.  
 
Usually single-page applications are rendered on the client side and therefore web crawlers of search engines like Google and Bing are not able to see the complete structure and content of the individual pages of the websites. With this limitation in place,it is not possible to list your website correctly in search engine results.  

However, there are techniques and packages to make this work, but it is an extra effort in terms of development. Angular universal is a way to render the Angular application of the server itself. The technology enables server-side rendering for Angular applications. Angular Universal generates static application pages on the server through a process called server-side rendering. 

While Angular universal takes care of most aspects, it still requires a lot of setup. If you prefer to do it all manually, there are documents available to help you do that but there are gotchas that you need to watch out for. 

Too many versions 

Angular has been evolving. It started out as a JavaScript framework AngularJS and now the current version is Angular 9 with a total of 6 major releases in between. This can cause confusion especially for beginners. 

Many a time, beginners struggle to understand the versioning. I have seen students learning a version of the framework, latest at the time, and by the time they finish their first project, a new major release is out. This causes trust issues. Developers, at times, feel that they must keep working on their apps and resolve version conflicts and compatibility issues. 

Decline in popularity 

With the advent of newer frameworks like VueJS and ReactJS, Angular has seen a downfall in its popularity. Just a few years ago, developers were mainly debating on whether they should be using Angular or React for their projects. But over the course of the last couple of years, we saw a growth of interest in a third player called VueJS or Vue.js.
 
While the job market in Angular continues to expand, it has been observed that the popularity of the framework has been declining. I believe that too many versions is one of the main issues that the framework needs to address. 

Lot of boilerplate code 

If you are building a simple app, there is a lot of boilerplate code that the application requires. Although with tools like StackBlitz, it has become easier to try code ideas and experiment without having to install anything on your computer, but if you decide to start developing an Angular app on your system, you need to install a bunch of things and the most simple “Hello World!” application will have a lot of code that you do not care about. 

What’s new in Angular 9? 

Let us take a closer look at what is in store for us in the Angular 9 version of the framework. We will delve into the latest version of Angular 10, released in June 2020, in a separate blog post. 

Step-by-step guide 

The official Angular website offers a step-by-step guide on how to upgrade your existing apps to the latest version. 

Step-by-step guide

Guide

Ivy, the next-gen compilation and rendering engine 

Ivy is the code name for Angular's next-generation compilation and rendering engine. With the version 9 release of Angular, the new compiler and runtime instructions are used by default instead of the older compiler and runtime, known as View Engine. You can, however, disable Ivy if you still want to use View Engine for your app. It is a huge milestone for the framework. Ivy offers faster build times and small build sizes. It also offers a new change detection system.

The important point is that we don’t have to change how we write our applications. Ivy aims to be compatible with the existing applications. Ivy is going to be smaller, simpler, and faster as quoted by the Angular team.  

In the demo shown by Miško Hevery, the creator of the AngularJS framework,in ngConf 2018, the Hello World application was merely 3.2KB which is significantly small although 3.2KB is the result after minification + gzip.

Total bundle SizeTotal bundle Size

Ivy compiles one file at a time and therefore follows the locality principle. Ivy looks at a component's template when generating the compiled output. This process leads to faster compilation. Ivy makes sure that, if you are not using something in Angular, it does not get included. Since Ivy pipelining is simplified, templates will be part of the stack trace.  

No more cryptic error messages when something is broken in our template syntax as we will see the exact line number where the error is. 

The Ivy compiler has been designed to remove parts of Angular code that aren’t being used via a mechanism called tree-shaking and to generate less code for each Angular component. With these improvements, small apps and large apps can see the most dramatic size savings. 

Angular ahead-of-time (AOT)  

In Angular 9, AOT is enabled for Dev build as well. The Angular ahead-of-time (AOT) compiler converts your Angular HTML and TypeScript code into efficient JavaScript code during the build phase before the browser downloads and runs that code.  

Compiling your application during the build process provides a faster rendering in the browser. AOT allows faster rendering of the application and also makes sure that there are a lot less asynchronous requests. According to the docs, AOT compilation with Ivy is faster and should be used by default. 

Lazy loading components 

Before Angular 9, we could only lazy load modules. Now, you can also lazy load components. It is a great way to shrink the size of your main bundle and boost the initial load of your application. Lazy loading of single components has not been possible so far. But things have changed with Ivy.  

Works with TypeScript 3.6 and 3.7 

The latest version of the TypeScript is 3.7 and Angular 9 is updated to work with TypeScript 3.6 and 3.7. Angular 9 supports usage of the same TypeScript Diagnostics format for the TypeScript Compiler diagnostics, which will generate more descriptive error messages. 

According to the official docs - “In TypeScript 3.7, when opening a project with dependencies, TypeScript will automatically use the source . ts / . tsx files instead. This means projects using project references will now see an improved editing experience where semantic operations are up-to-date and “just work”. 

SupportscCSS variables or custom properties 

Angular 9 supports CSS variables or custom properties. CSS variables or custom properties allowsdevelopers to define their own variables for CSS values that can be shared between components and style rules.  

CSS custom properties or CSS variables allow the CSS property values to be changed at runtime. The possibility that the CSS custom properties can be updated during runtimeopens the opportunity to easily create themes for newer Angular application.  

Angular:Quick tips and facts 

Angular is a framework used for front-end development. This involves the client-side of the application and has little to do with the back end. 

  1. Angular is best utilized for completing advanced, large-scale projects under the direction of a seasoned developer. 
  2. Angular is created for enterprise-scale applications. 
  3. Angular elements can be added to projects that were built using a different platform, such as React or Polymer. 
  4. Angular is supported by Google. 
  5. This program is not up to par with SEO best practices, so if your primary focus is search engine optimization, opt for a different platform. 
  6. Angular is a JavaScript framework—not a JS Library.
  7. Angular ranked second in “most used technology” in the Stack Overflow Survey of 2018.  

How to get started with Angular?

Are you ready to take on the best and become a master of the Angular framework? Check out the Angular Training and Certification which comes with instructor-led live training and real-life project experience.  

This training will help you understand Angular in-depth and help you achieve mastery over the subject. 

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Easier Angular JS Routing With Angular UI Router

Takeaways from this article In this post, we will understand how and why Angular JS Routing is better in comparison to traditional frameworks, and how this routing can be achieved seamlessly with the help of Angular UI Router.  We will understand the usage and importance of states, and how they help in navigating easily through the application. We will see a sample with a state definition and its usage, and how it helps in resolving issues and making the page user-friendly.  Introduction  Angular JS is a popular application framework that is used for front-end development. It works great when creating single page applications. It is written in JavaScript and is being maintained by tech-giant Google. It is used to interpret the HTML attributes in a webpage in the form of directives and bind the respective input and output components of the model, that are represented in the form of JavaScript variables. Angular UI Routing helps navigate between views and pages seamlessly without getting messy, and in a user-friendly manner.  Note: It is assumed that the reader is aware of technologies like HTML, CSS, JavaScript and Angular JS. Native Angular Routing doesn’t have the following facilities: No nested views No named views Data can’t be passed around between two views The syntax of the route should be literally remembered to navigate the page The URL string has to be manually changed via the code base when a URL is changed. When a URL changes, all the links associated with that URL have to be changed and updated to point to the new location.  In order to minimize the above disadvantages, Angular UI Router is used.  Introduction to Angular JS Routing Angular JS Routing is an advanced technique that helps in routing, that has a declarative approach in navigating through the pages of a website. In a webpage, when a link that points to a different page is created, the URL has to be explicitly defined. This path has to be literally memorized and if it is changed, then the URL would have to be changed in all places where it was previously referenced. This is when Angular JS Routing comes into play.  Angular UI Router is a module in Angular JS that helps in the process of routing in Angular JS applications. The Router facilitates in the creation as well as usage of such routes in applications. The Router consists of a method called ‘stateProvider’ which helps in the creation of ‘states’, also known as ‘routes’.  The method ‘stateProvider’ takes the name of the state and the configurations of the state as its parameters. It looks like below:$stateProvider.state(stateName, stateConfig)The above function creates a state in the application. The parameter ‘stateName’ is a string value that is used to create a parent or a child state. To create a child state, the parent state is referenced with the help of the dot operator.  The ‘stateConfig’ parameter is an object that can take many properties, such as: template: It is a string in the form of HTML content or a function that returns a HTML string as the output.  templateUrl: It is a string that is a URL path to a specific template file or a function that returns a URL path string as the output.  templateProvider: It is a function that returns the HTML content as a string output.  Note: The ‘stateConfig’ parameter can take only one property at a time per state or per view with respect to the application.  The states in an application help the user in navigating or reconstituting to the situation that occurs within the application’s working. Note: The latest version of UI Router can be downloaded from the GitHub repository. Below are three examples when ‘stateConfig’ has different properties: With ‘template’ as a property: $stateProvider.state(‘stateName’,   {      url: ‘url for the specific state’,     template: ‘html content’,     controller: "name of controller for specific state" });With ‘templateUrl’ as a property:$stateProvider.state('stateName',   {     url: ‘url for the specific state’,     templateProvider: ‘function name’,     controller: "name of controller for specific state" });Introduction to Angular JS Router It is one of the modules in Angular JS that helps in creating routes for applications that use Angular JS.  Applications are encompassed in a shell, and this shell behaves like a placeholder for the dynamic content that would be generated later.  The UI Router is a routing framework that changes the views of the application based on not just the URL, but the state of the application as well.  It helps in bridging the gap between the traditional frameworks, by allowing nested views, named views, passage of data between two different views, and so on.  Routes are an integral part of Single Page Applications that are preferably created using Angular JS.  With the help of Angular UI Router, these routes can be created with ease and can be used with ease in Angular JS.  The ‘state’ facility gives the flexibility to encapsulate the location of the URL state name, special data for view, generate a view, or even locate a view.  Angular UI Router consists of a ‘stateProvider’ method that can be used to create a route or a state in an application.  The ‘stateProvider’ function takes the name of the state and the configurations of the state as its parameter.  In addition to this, Angular UI Router also helps resolve dependencies before initializing the controller.  It provides utility filters, declarative transitions, state change events, and so on.  What is the difference between State and URL Routes? State Route The views and routes of the Angular JS page will not be bound with just the URL of the site. The specific parts of the site can be changed with the help of UI Routing even if the URL has been kept the same. All the states, routing, and viewing capabilities of the page are handled at a single one-stop place- the ‘.config()’. URL Route URL route is a little different. It is usually implemented using ‘ngroute’, and it needs the implementation of methods such as ‘nginclude’. If the number of methods increases, the situation could get complicated and handling of these methods gets difficult.Stepwise routing with detailed explanation The node.js and npm have to be installed prior to working with the below steps.   For this purpose, the http-server node module has to be run and installed which will help in hosting the demo application that we would create.   It can be installed with the help of the below command: npm install http-server –gA hierarchical directory structure needs to be created. A sample has been shown below:Demo_App --app.js --index.html --nav.htmlThe ‘nav.html’ file needs to have the content as mentioned below: The nav bar title The contents of the file  The two different actions that would be created will also be mentioned here (The home page and the log in.) The index.html file will have the required dependencies along with nav.html file.  The nav.html file will be included in the body tag of the index.html page. The dependencies will be included with the help of ‘CDN’ in the head tag. A separate body tag will be used to define the ui-view div. The ui-view is a section where the information about various routes content and how they would be rendered is present.  The ui-view is a directive that is present inside the ui.router module.  The ui-view directive tells the ‘$state’ about the positioning of the template properties (or other property) It would look like below (sample):  An app.js file can be created, which is an application file that contains the route information and the actions that need to be performed with the help of the controller in the application framework. Below is a sample app.js file:var app = angular.module('Demo_App', [ "ui.router" ]);   app.config(function($stateProvider, $locationProvider,                                   $urlRouterProvider)   {       $stateProvider.state('home_page',   {               url : '/home',               template : "Home page",               controller : "hmeCtrl"         })           .state('login_page',   {               url : '/login',               template : "Login page",               controller : "lgnCtrl"         })       $urlRouterProvider.otherwise("/home");   });   app.controller('mainCtrl', function() {});   app.controller('hmeCtrl', function() {});   app.controller('lgnCtrl', function() {});The first line of the sample code declares the name of the application module and injects a ui.router module dependency into it. Next, the route configurations are defined inside the app.config and the dependency injections are set up.  The routes for the required attributes are set up with the help of the ‘stateProvider’ function and mentioning the required parameters.  Once the home page and the login have been set up, a condition is set up where the page would be redirected back to the home page if any of the routes don’t match the url name. This is done with the help of the ‘otherwise’ function.   Empty states are created for the controllers. This is done since it is a sample and no operation is being performed inside these states.  The above sample application can be run in the browser after the http-serve node module has been installed (as mentioned in the first step of this explanation).   Next step is to navigate to the ‘routingDemo’ folder and execute the below mentioned command:http-serverThis command helps in hosting the demonstration application on the default port that is 8080. This can be accessed with the help of the below mentioned link:localhost:8080/When the application is accessed via a browser, it will be a web application with two routes, namely: Home Login Conclusion In this post, we understood the prominence of Angular JS Routing and Router, and how they are different from the traditional approaches. They help bridge a gap between the features that traditional approaches implement, thereby increasing the ability of web pages to work and perform in a better, more user-friendly manner.
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Easier Angular JS Routing With Angular UI Router

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What Is Dependency Injection in AngularJS

AngularJS is an open source JavaScript MVW (Model View Whatever) framework backed by Google and is widely popular for creating dynamic apps. It offers a suite of tools that can be used for building the framework most suited to your single page application development. However, it can also be fully utilized to work for other categories of web pages. It works well with other web-based libraries and is fully extensible. All its features can be modified and even can be replaced to suit your unique development workflow and web feature needs.    As AngularJS is a pure JavaScript framework, it can be added to an HTML page with a normal  tag with src attribute pointing to the source framework library, just like other JavaScript libraries.  AngularJS extends HTML attributes using Directives.  It binds data to HTML using Expressions. AngularJS can be downloaded from https://angularjs.org/. If you’re new to AngularJS, it is better to get introductory information from http://angularjs.org. This site provides the basic information required to start working with AngularJS. It has various features including MVC Architecture, Directives, Expressions, Controllers, Filters, HTML DOM, Modules, Views, AJAX, Scopes, Services, Dependency Injection, and Internationalization. We will deal with Dependency Injection in the following section. IntroductionDependency Injection − AngularJS has a built-in dependency injection (DI) subsystem library whose work is to help the development team by making the application easier to develop, test, and understand. We will learn about each part of DI in detail. The topics we will go through in this article are: Dependency injection in AngularJS Value Injecting a Value Factory Injecting Values into a Factory Service Injecting Values into a Service Providers Configuring a Provider Constants Dependencies Between Modules Dependency injection in AngularJs Today’s software is totally designed in accordance with various design patterns. One such pattern is Dependency Injection. The DI design pattern specifies the pattern in which components are provided with their dependencies, instead of hard coding them within the component. AngularJS comes with a built-in dependency injection mechanism that enables you to divide your application into various types of components which can be injected into each other as their respective dependencies. Modularization of your application makes it easier to use, reuse, configure and even test the different components in your application. According to DI the core types of objects and components include the following: Value Factory Service Provider Constant These are the objects and components which can be injected into each other using AngularJS Dependency Injection. ValueFor AngularJS, the “Value” is a simple object. It can be a number, a string or a POJO (Plain old JavaScript object). This object is used to pass values in AngularJS factories, AngularJS services or AngularJS controllers during the run and config phase. The following example shows the steps involved in using a value. Step 1:  Define a module   var myMod = angular.module("myModule", []); Here, myModule is created using the AngularJS function angular.module(). You can add value, controllers, directives, filters, and more, to your AngularJS application using a module. Step 2: Create a value object and pass data to it.    myMod.value("numberValue", 10);    myMod.value("stringValue", "aaa");    myMod.value("objectValue", { field1 : 123, field2 : "abc"} );  Here, values are defined using the value () function on the module as created in step 1. The first parameter specifies the name of the value, and the second parameter is the value itself passed to other parts of the application. Factories, services and controllers can now reference these values by their value name. Step 3: Injecting a value in Controller function To inject a value into AngularJS controller function, we need to add a parameter with the same value name as that with which the value was defined. Note that the controller function is registered in angular via the angular.module(...).controller(...) function call. The $scope parameter passed to the controller function is the model for the controller. Thus, here myMod is the module registering the controller as myController, and $scope is the model for myController.  var myMod = angular.module("myModule", []);    myMod.value("numberValue", 10);    myMod.controller("myController", function($scope, numberValue) {     console.log(numberValue);    });Example: Using Value in AngularJS: Consider that you have already downloaded the latest AngularJS file from https://angularjs.org/ (here we are using the minified version of AngularJS as angular.min.js). We can even use the AngularJs CDN for the same provided by Google.          Value in AngularJS             Value Example     The numberValue is: {{nValue}}        var myMod = angular.module('myModule', []);  myMod.value("numberValue", 5);  myMod.controller('myController', function($scope, numberValue)   {  $scope.nValue =numberValue;  });       Output: Factory In AngularJS, a factory is a function that is used to return a value. This function creates the value on demand whenever a service or controller needs any value injected from the factory. AngularJS applications normally use a factory function to calculate and return a value. The following example shows the steps involved in using a Factory. Step 1:  Define a module   var myMod = angular.module("myModule", []);   Here, myModule is created using the AngularJS function angular.module(). You can add factory, value, controllers, directives, filters, and more, to your AngularJS application using a module. Step 2: Create a factory object and return data from it.    myMod.factory("myFactory", function() {        return "a value";    }); Here, we have used the factory function to create a Factory named myFactory. This Factory is returning “a value” from it. Step 3: Injecting values into factory Create a controller which gets the factory created value injected (for explanation of Controller, go to the Value part of the article and navigate to its Step 3). To inject a factory value into AngularJS controller function, we need to add a parameter with the same value name as that with which the factory was defined.  var myMod = angular.module("myModule", []);    myMod.factory("myFactory", function() {        return "a value";    });  myMod.controller("MyController", function($scope, myFactory) {    console.log(myFactory);    }); Note: It is not the factory function that is injected, but the value produced by the factory function that gets injected. Example: Using Factory in AngularJS:         Factory                Factory Example    The numberFactory is: {{nFactory}}        var myMod = angular.module('myModule', []);  myMod.factory("myFactory", function() {    return "a value";    });        myMod.controller('myController', function($scope, myFactory) {  $scope. nFactory =myFactory;  });       Output: Service Web Services are helpful functions that perform a task. Similarly, in AngularJS, Service is a JavaScript object which contains a set of functions to perform certain tasks. Services are created by using service() function on a module and then injecting it into controllers. The following example shows the steps involved in using a Service. Step 1:  Define a module   var myMod = angular.module("myModule", []);   Here, myModule is created using the AngularJS function angular.module(). You can add Services, factory, value, controllers, directives, filters, and more, to your AngularJS application using a module. Step 2: Create a service for defining the MathService for calculating basic math functions like add, subtract, multiply and divide. And then create another service, myService for defining a cube method to return the cube of a given number: myMod.service('MathService', function() {      this.add = function(a, b) { return a + b };      this.subtract = function(a, b) { return a - b };      this.multiply = function(a, b) { return a * b };      this.divide = function(a, b) { return a / b };  });  myMod.service('myService', function(MathService){       this.cube = function(a) {          return MathService.multiply(a,MathService.multiply(a,a));        }    }); The above code snippet uses MathService to call multiply function that takes two parameters and calculates the product.  Step 3: Inject the service "myService" into the controller   Create a controller which gets the Service injected (for explanation of Controller, go to the Value part of the article and navigate to its Step 3). To inject a Service function into AngularJS controller function, we need to add a parameter with the same value name as that with which the Service was defined.  myMod.controller('myController', function($scope, myService) {        $scope.doCube = function() {          $scope.result = myService.cube($scope.number);       }    }); Here we can even make it event based by adding an event in the main HTML content as:   Enter a number:            Cube      Result of Service: {{result}}      Example: Using Service in AngularJS:         Service Example           Service Example        Result of Service: {{result}}          var myMod = angular.module("myModule", []);  myMod.service('myService', function(){  this.sum = function(a,b) {  return a + b;  }      });  myMod.controller('myController', function($scope, myService) {  $scope.result = myService.sum (5, 6);  });       Output: Provider In AngularJS, a provider is used to internally create other values or services or factory during config phase (the phase during which AngularJS bootstraps itself). Provider can be considered to be the most flexible form of factory you can create. Provider is a special factory method with a get() function which is used to return the value or service or factory. The following example shows the steps involved in using a Provider. Step 1:  Define a module   var myMod = angular.module("myModule", []);   Here, myModule is created using the AngularJS function angular.module(). You can add Services, factory, value, controllers, directives, filters, and more, to your AngularJS application using a module. Step 2: Create a service using provider which defines a method square to return the square of a number.  We use provider method to create a Provider.   myMod.config(function($provide) {       $provide.provider('myServiceProvider', function() {          this.$get = function() {             var factory = {};               factory.multiply = function(a, b) {                return a * b;              }             return factory;          };       });    });  Step 3: Inject the Provider "myServiceProvider" into the controller   Create a controller which gets the Provider injected (To understand how to create a Controller, go to the Value part of the article and navigate to its Step 3). To inject a Provider function into AngularJS controller function, we need to add a parameter with the same value name as that with which the provider was defined.  myMod.controller('myController', function($scope, myServiceProvider, defaultInput) {        $scope.number = defaultInput;        $scope.result = myServiceProvider.multiply($scope.number, $scope.number);        $scope.square = function() {               $scope.result = myServiceProvider.multiply($scope.number, $scope.number);         }       });   Example: Using Provider in AngularJS:             Provider               Provider Example                        Enter a number:      X 2              Result: {{result}}                                  var myMod  = angular.module("myModule", []);              myMod.config(function($provide) {    $provide.provider('myServiceProvider', function() {    this.$get = function() {    var factory = {};    factory.multiply = function(a) {     return a * a;          }  return factory;      };        });      });             myMod.value("defaultInput", 10);             myMod.controller('myController', function($scope, myServiceProvider, defaultInput) {                $scope.number = defaultInput;                $scope.result = myServiceProvider.multiply($scope.number);    $scope.square = function() {    $scope.result = myServiceProvider.multiply($scope.number);     }        });               Output: Constants Config Phase of AngularJS has some restrictions for injected values, as you cannot inject values into the module.config() function. Instead constants are used to pass values at config phase. To define a constant value we use the constant() function of the defined module. Then for the constant parameter we provide a constant value. The following example shows the steps involved in using a Constant in AngularJS. Step 1: Define a module   var myMod = angular.module("myModule", []);  Here, myModule is created using the AngularJS function angular.module(). You can add Services, factory, value, controllers, directives, filters, and more, to your AngularJS application using a module. Step 2: Create a constant using the constant function and pass constant data to it.      myMod.constant("configParam", "constant value");    Example: Using Constant in AngularJS:              Constant            Constant Example      The numberConstant is:  {{nConstant}}            var myMod = angular.module('myModule', []);      myMod.constant("nConst", 5);      myMod.controller('myController', function($scope,nConst) {  $scope.nConstant =nConst;  });        Output: Difference between Constant and Value Values and Constants seem to be applied in the same way; however, Value differs from Constant in that value cannot be injected into configurations, but it can be intercepted by decorators. Also, a Constant can be used during the apps config phase, whereas a Value is only available during the run phase. The main difference between value and constant is that a value specified using Constant is available during the configuration phase while value specified using Value is available during the run phase. Example showing the difference between a Constant and a Value:          Constant                  Constant Example    {{ID}}          var myMod = angular.module('myModule', []);  myMod.value("myValue", "First Assignment");  myMod.value("myValue", "Second  Assignment");  myMod.constant("myConstant", "First Assignment");  myMod.constant("myConstant", "Second Assignment");  myMod.controller("myController", function($scope, myValue, myConstant) {  console.log("myValue: " + myValue);  console.log("myConstant: " + myConstant);  $scope.ID = " myValue: " + myValue + "&nbsp   myConstant: " + myConstant;  });       Output: Constant Example myValue: Second Assignment myConstant: First Assignment  Complete Example: AngularJS Dependency Injection Let's take an example to deploy all the above mentioned directives.                AngularJS Dependency Injection                 AngularJS Application Showing Dependency Injection         Enter a number:         X  2                Result: {{result}}                          var myMod = angular.module("myMod", []);    myMod.config(function($provide) {    $provide.provider('MathService', function() {    this.$get = function() {    var factory = {};    factory.multiply = function(a, b) {    return a * b;          }    return factory;      };        });      });    myMod.value("defaultInput", 10);    myMod.factory('MathService', function() {                var factory = {};                factory.multiply = function(a, b) {    return a * b;  }    return factory;  });           myMod.service('CalcService', function(MathService){    this.square = function(a) {    return MathService.multiply(a,a);     }         });    myMod.controller('myController', function($scope, CalcService, defaultInput) {    $scope.number = defaultInput;    $scope.result = CalcService.square($scope.number);    $scope.square = function() {    $scope.result = CalcService.square($scope.number);      }        });               Output: ConclusionIn the above article we learned about the Dependency Injection in AngularJS. Dependency Injection is a software design pattern that specifies how components get hold of their dependencies. In this pattern, components are given their dependencies instead of coding them directly within the component. We learned about core types of objects and components like Value, Factory, Service, Provider, and Constant. We learned how to create and register an injectable service and configure an injector with a service provider. We learned how to work with Injecting services to a controller. In the end we summarized with a complete example how Providers, Services, Factory and Value can be used.  
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What Is Dependency Injection in AngularJS

AngularJS is an open source JavaScript MVW (M... Read More

How to become a Full Stack Pro

Full stack developers are in high demand in the software development industry. These developers understand all aspects of the development process including user experience and data maintenance. Hiring full stack developers reduce the need to hire too many resources for product development. In this article, we have explained the concept of full stack development and how it can benefit businesses. Full Stack Development has come to the picture as none of the organisation would like to invest a lot by hiring software development services from different developers. Understanding the increased competition in the market. Front-end development Front-end development consists of the entire user-facing parts of software development. It is the responsibility of the Front-end developers to implement visual elements like how the software or an app will look, interact and operate with the user. Back-end development Back-end development is responsible for making a program function well. The developers who work at back-end spend a lot of time creating and working with databases. To develop a user-driven software, you need both. Full stack developer is the one who is pro in both the technical domains. Also, they understand every aspect of development including front-end, back-end, database queries and various operating systems. Such high-skilled developers are recognized as “developer generalists” as they can develop any complex application from scratch and understand how each technical layer interacts with the other. Technical Skills 1. Programming languages A skilful full-stack developer must be proficient in multiple programming languages like JAVA, C#, Ruby and PHP. It is crucial to be a master in the language syntax and be familiar with how to design, structure, test and implement the programming codes. 2. Development frameworks and third-party libraries Development languages are generally accompanied by a good development framework like Node.Js, Express.JS, Hibernate, Python Django, Java Spring, MyBatis and PHP Thinkphp. Therefore, it is good for the full stack developers to understand the development frameworks and third-party libraries. 3. Front-end technology For the development of a product, front-end technologies are necessities. The full-stack developer needs to have some basic knowledge of front-end technologies such as HTML5, CSS3 and JavaScript and should study the frameworks such as JQuery, LESS, SASS, AngularJS, or REACT. 4. Database and cache Every software product needs a database to store the data. A full stack development expert should understand the concepts of the databases and know how to interact with it seamlessly. MongoDB, MySQL, Redis, Oracle are some popular databases that are being used by the developers to develop the backend for dynamic applications. 5. Basic design ability When it comes to basic design utility, it is crucial for full stack developers to understand the basic principles and skills of prototype design, UX and UI design. It is very important a Full Stack Developer to understand all the following technology stacks that are key to software development Backend Architecture Microservices: It allows the business functionality to be split up into independent services. The microservice architecture can help businesses automate in-house processes in a short period. It is the perfect option for every size of companies who wish to automate their business operations and efficiently realize its value. Blockchain platforms: Using the blockchain platforms for developing dApps have benefited top companies like IBM and Oracle. Following are the blockchain platforms, helping you to choose the right one for your project: Hyperledger: Hosted by Linux Foundation, Hyperledger is an open source project, offering toolsets, frameworks and projects for developers to build and experiment using blockchain technologies. Ethereum: It uses a proof-of-work (PoW) algorithm, known as “Ethash,” which needs more memory to make it hard to mine. You can get the dApp built on Ethereum for streamlining your business operations. Hedera: Hedera is the public hashgraph network, governed by a council of renowned enterprises and organizations, across multiple industries. The Hedera Hashgraph platform provides the distributed consensus in a new form, which is trusted, secure and does not need an intermediary. Mobile app development React Native: It allows to build the application using Javascript. The native approach, React Native can speed up the process of development and create compelling mobile apps.Rather than offering a slow user experience that’s not useful for a platform, it provides all the advantages of a native application. Xamarin: Xamarin has been referred to be the best choice for full-stack developers who want to build cross-platform portability that integrates an app to all three mobile platforms, i.e., iOS, Android and Windows.Therefore, it minimizes the time, saves money and efforts of the developers when it comes to the development of mobile application. Cordova: Also known as PhoneGap, it allows developers to build a mobile app and then wrap it in the framework that can be installed as an application across several mobile device platforms without a lot of extra efforts. SWIFT/Obj.C: These both are programming languages that can be used to code the Apple software products under iOS, tvOS, CarPlay, macOS, watchOS and Linux (only for Swift) operating systems. Also, these languages have different APIs and frameworks. JAVA/Kotlin: A statically-typed programming language is offering full compatibility with JAVA, allows writing less code, can compile to JavaScript source code while having readable syntax. Back-end and Framework Technologies Node.JS: Built on Chrome’s Javascript runtime that can create scalable network applications faster than ever. The open-source cross-browser environment, Node.JS has been built to seek the attention of worldwide developers. Express.js: It is an open-source framework for Node.Js can be used to simplify the development with a set of tools, packages, plugins and features. Express.js with Node.js can be used to develop APIs for single and multi-page, hybrid mobile and web apps. PHP: An open source platform that allows rapid creation of prototypes and websites. The programming language can be used to develop user-friendly websites for small or big enterprises in less time and budget. Python: Python is based on a high-level dynamic programming language that can offer a plethora of business benefits. Since it can easily interact with other languages, you can get the freedom for future upgrades. Python development is highly suitable for customizing larger apps as the language comes with various features such as scalability, special libraries, extensibility and easy readable syntax. Laravel: One of the top PHP frameworks, Laravel can offer enhanced security to the data as well as users. It can help limit unauthorized users from accessing any paid services or something crucial to the business. Front-end Technologies Front-end refers to the development of the web pages and user interfaces for websites or applications. It implements the design, structure, behavior and animation of everything that you experience visually on the screen while using the site, web applications and mobile apps. BootStrap: It is a front-end framework, that supports the creation of dynamic websites and applications. It is a highly preferred front-end framework that allows fast and easy ways of building a website. If you want to develop an application, it is crucial to consider Bootstrap as it helps save the coding efforts and offers a lot of commonly used Cascading Style Sheets (CSS) functionalities, by default. React JS: A javascript library that is perfect for building the amazing user interfaces. Its development is known for delivering high-performance client’s and server-side’s rendering. AngularJs: When it comes to developing the browser, web-based applications and mobile apps, Angular JS is perfect for the development of all types of apps. Angular JS, developed and maintained by Google developers has been known for its flexibility. HTML/CSS: These are the basic building blocks used to design and development of websites. It enables you to add content and styles to your project site. It is the building block of any digital content today on the internet. Javascript: JavaScript has been the most popular scripting language for a long time. It enables you to perform quick actions on the client side itself without the need for a response from the server side. This vastly improves the user experience and efficiency of the website or application. Database Technologies Database technologies grab details and store, organize and process it in an easy way that allows users to find the required data quickly. MySQL: It is free to use an open source database, offering easy database management by connecting it to the software. Since it is a robust, scalable and reliable solution, providing advanced benefits such as data security, on-demand scalability, high performance and complete workflow control, it is widely used in small or medium-sized applications. MongoDB: It is a free, open-source and distributed database at its core. Having sharding and scaling features, MongoDB can help enterprises to maintain and customize database development to a large extent. PostgreSQL: Being one of the most advanced open source databases, it offers endless development opportunities to enterprises. It can be widely used in large-scale applications or websites. DynamoDB: Amazon web service was introduced as one of the most prominent NoSQL cloud databases. DynamoDB has a flexible schema and is scalable, which allows users to quickly change how data is structured and can run various queries against it. Cloud Services Amazon Web Services (AWS): It is known to be a secure cloud services platform offering deployment tools, database storage, content delivery, computing power and functionality solutions. These services can aid enterprise applications by increasing flexibility, reliability, lowering the IT costs and offering scalability. Microsoft Azure: It helps to increase the business agility as it offers a host of application building blocks and services, allowing users to customize the cloud as required. Google Cloud Platform (GCP): Google offers a suite of public cloud computing services known as GCP. A range of hosted services for computing, applications development and storage, which run on the Google hardware are included in the platform. The GCP services can be utilized by cloud admins, enterprise IT professionals and developers through a dedicated network connection. Version Control System (VCS) and Debugging Version control can help record changes to a file or set of files over time, enabling you to recall specific versions later. Following, are some of the version control systems: GIT: Most favored and widely used distributed version control system, GIT performs robustly and reliably as compared with other VCs. It also helps maintain the integrity of source code. GIT ensures to have an authentic history of the source code. Full-stack developers or development company can use GIT for developing the projects as it offers excellent performance, security, flexibility and functionality. Xdebug: Released in 2002, Xdebug is a PHP extension, which provides profiling and debugging capabilities. Subversion: It is a centralized version control system which means the history of the version is stored in a central server.Devops It is the combination of tools, cultural philosophies and practices, which enhances the enterprise’s ability to deliver services and apps at high speed. The great speed allows companies to offer better service to their clients and compete effectively in the market. It is the practice of operations that allows the developers to participate together in the entire lifecycle of the service, from design to development and production support. DevOps enables developers and operations teams to offer high speed, reliability, security, scalability and regular updates to their customers. In ConclusionBecoming a Full Stack Developer has its own advantages including the knowledge of both front-end and back-end. The developer can be in-charge of the project and ensure fast and timely delivery of the project.
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How to become a Full Stack Pro

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