Differences Between Swift and Objective C

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Last updated on
11th Mar, 2021
Published
28th Aug, 2019
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 Differences Between Swift and Objective C

Today, apps have become a crucial part of the marketing industries and mobile app development companies are now developing more apps according to customers’ requirements to gain profit. While developing the apps, the companies need to make sure that the app is pleasant, loads fast, execute even more fast, and valuable for its consumers. 

Programming languages live longer, but it is the market getting outdated with the use of same programming language to develop an app. If you are developing apps and not yet explored Swift, an iOS programming language then you should make a note that Swift is the language of this era which not only supercede Objective-C (the other iOS programming language) also a better option to replace embedded programming on Apple platforms. But, how these two programming languages differ from each other? Let’s take a look at the differences between Swift and Objective-C iOS programming languages.

Swift vs Objective-C

There are many factors to consider every time before choosing any programming language before app development. It leads to confusion among the app developers which leaves a space for the discussion on which language to choose- Swift or Objective-C for building iOS application? 

Have a look at the analysis of facts given by Google trends that will solve all your doubts on choosing between the Swift or Objective-C programming languages:  

Swift vs Objective-C

Let’s take a closer look at the comparison of Swift vs Objective-C:

  • Switch is easy

In Swift programming language, a switch can be executed to all new features such as ranges, tuples, values, lists of values, wildcards, as well as lines, classes, and structures. It doesn’t ‘fall through’ by default. 

Objective-C code is less readable and more complicated. In addition to this, it is mandatory to develop a separate new structure for some Point variable.  On the other side, Swift simplifies this process.

  • User-Friendly

Swift has a more simplified syntax for creating fields and properties of the classes. Also, properties in Swift do not require instance variables. On the other end, in the latest versions of Objective-C, instance variables were created automatically and they could be set manually as well.

In Swift, instance variables cannot be created.    

  • Easy Code Compilation

This is a very interesting feature for programmers. Xcode IDE is the latest editor where programmers can run the code. This code can be compiled and executed once at this editor. This lets the programmer code and see the results directly without building a complete project and running an emulator to check everything, saving your time. In Swift, you can easily experiment with new algorithms using a great interactive environment, which is not possible in Objective-C.  

  • Better enum

Enum is referred to as lines, characters, integers, and fractional numbers in Swift programming language. Therefore, using Swift, you get a more readable and less complex code implementing the inverse transformation #toRaw which is not possible with Objective-C.   

  • Functional Programming features

In Swift, there are higher-order functions, functions as values, nested functions, closures, anonymous functions and other attributes of real functional programming. On the contrary, in Objective-C, you have to use blocks instead of functions. That’s why the code in Objective-C is 4 times lengthy and not as clear as in Swift.

Differences between Swift and Objective-C

While comparing Swift with Objective-C, it should always be noted that Swift is improved on a continual basis and this is a reason that the developers around the world are learning this new language. The most crucial reason for learning this language is that an average programmer also can develop simple mobile applications with Swift.

But, how will you decide which language to learn- either Swift or Objective-C? Let's take a look around the tabular form of comparison between Swift and Objective-C languages based on the factors:

FactorsSwift                        vs              Objective-C
Execution TimeIt takes less time as unchanged files are not compiled againIt takes more time as the whole code is built each time when there is a change in code
Supporting OSSupports iOS, OS XIt is cross-platform
ParadigmIt is Object-OrientedIt is Class-based Object Oriented
PlatformIt has a WYSIWYG editorIt has a basic editor
ReadabilityIn Swift, it eliminates @ symbol, increasing its readabilityObjective-C makes use of @ symbol for new keyword insertion
Code LengthsHere, codes are smaller and less complexHere, codes are lengthy and complex
EnumsIn Swift language, raw value is mapped to enum directlyIn Objective-C, raw value is assigned manually to an enum
Maintaining CodeIn Swift, a code is easy to manage (similar to the English language)In Objective-C, a code is difficult to manage
Functional ProgrammingSwift incorporates functional programming with the help of various functionsThis programming language doesn’t incorporate functional programming
Declaration SyntaxDeclaration Syntaxes are more simplified which needs no instance variablesIn Objective-C, declaration syntaxes are unmanageable which needs instance variables
Type DefinitionHere, no need to define TypeHere, need to mention the Type specifically

Coming to the conclusion

Swift is finally declared as ABI stable and is considered as a mature language. Also, from now on the future updates in Swift will not break the current code in Swift 5. On the other hand, Apple provides good interoperability between these two languages- Swift and Objective-C. 

If you are building a binary framework, you can use Swift language to get Module Framework Stability and if you want to develop any C++ and Objective-C++ framework, at that moment you can blend the two languages- Swift and Objective-C. 

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