source code of the standard array type in swift

You can find the implementation of the Swift standard library's Array type on Apple's open-source Swift repository on GitHub:

https://github.com/apple/swift/blob/main/stdlib/public/core/Array.swift

The Array type is implemented using a struct in Swift, providing value semantics to the array. The source code provides insight into how features such as subscripting, iteration, and enumeration are implemented. Knowing the implementation details of the Array type can be useful in optimizing your own code, or in better understanding the language itself.