![]() ![]() For instance, AppleScript uses this characteristic to automate repetitive coding tasks, while UndoManager uses it to provide developers an easy rollback mechanism. Certain Apple classes and scripting languages capitalize on this to offer helpful capabilities. They can then use these classes and structures to define custom data types as blocks of code.Īnother key attribute is that Objective-C applications can inspect all defined classes at runtime while allowing for custom classes and new methods. Superclass structureĭue to the superclass structure of Objective-C, developers can add methods to classes at runtime without the need to recompile them later. However, this does afford developers the freedom to implement a number of different design patterns, including proxy and observer patterns. However, it does come at a slight performance hit, since it forces the application to check for errors with each new execution rather than delivering clean code from the start. This adds a great deal of flexibility when it comes to assigning particular variables to multiple types of objects. Objective-C is dynamically typed, which means variables are assigned to objects at runtime. Furthermore, developers can tie those function calls to specific objects at runtime rather that at compile time, adding a little flexibility to Objective-C implementations in terms of reusing those functions. By passing messages as function-invoking objects, developers can organize code into reusable blocks of code that are easy to replicate for other applications. Messaging is a key attribute of Objective-C, not to mention a pillar of object-oriented programming. Here are some of Objective-C's most praised characteristics: Reusability through objects Finally, the Xcode IDE was built with Objective-C and it offers a potentially more stable environment for building iOS and OS X applications than using Swift, particularly when working with advanced codebases. However, that scenario continues to change with every new Swift release. In addition, the relationship between the Cocoa framework and Objective-C code provides a strong advantage when it comes to building complex applications. For example, making API calls with Objective-C may feel more intuitive to C and C++ veterans. One of the major benefits of Objective-C is the easy access to C and C++ functions and libraries. As the natural language of the iOS framework, Objective-C is a superset of C, but adds additional features like a bracket-style messaging syntax. It's based on an object-oriented programming approach, which revolves around dividing code into classes and methods. Objective-C was introduced in the 1980s, and introduced tools that eventually became the Cocoa platform for iOS, macOS, watchOS and tvOS development. So, which to choose: the proven and robust - but possibly outdated - Objective C, or the newer Swift? In this article, we'll look at the history and key features of each language, and review some considerations to take before choosing one over the other.
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