Major differences between Swift and Objective-C
1.Code Readability :
Objective-C : Objective-C code is not easily readable, most of new developer found it difficult to learn, have to give semicolon (;) after every statement end.
Swift : Swift is easily readable language, resembles english language. New developer found it easy to learn and understand.
2.Code maintenance :
Objective-C : Objective-C has two file .h and .m it makes code size bigger also its difficult to maintain both file for every classes in project file structure.
Swift – Swift has only one .swift file, which helps developer to maintain code nicely. Also it creates less file in projects file structure.
3.Code execution time:
Objective-C : Objective-C takes more execution time as it built complete code every time if any changes are made in code
Swift – Swift takes less execution time as unchanged files does not compile.
4.Easy and clear Syntax:
Objective-C : Objective-C we have to give semicolon (;) after every statement end. Also need to write lot of square brackets in code
Swift : There is no need to give semicolon (;) at statement end. swift omits square brackets syntax.
Objective-C : In Objective-C we need to define type every time.
Swift – Swift is intelligent enough to define type by its own.
6.Powerful concepts and features
Swift – Swift has new features like Tuples, Optional, error handling using “if let” and “guard” also improvement in features like enumeration, switch, control flow (if..else, do statement)
Swift – Swift is future language of apple (macOS, iOS, watchOS, tvOS).
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