Control Flow For Swift
Swift provides a variety of control flow statements. These include while loops to perform a task multiple times; if , guard , and switch statements to execute different branches of code based on certain conditions; and statements such as break and continue to transfer the flow of execution to another point in your code. Swift also provides a for - in loop that makes it easy to iterate over arrays, dictionaries, ranges, strings, and other sequences. Swift’s switch statement is considerably more powerful than its counterpart in many C-like languages. Cases can match many different patterns, including interval matches, tuples, and casts to a specific type. Matched values in a switch case can be bound to temporary constants or variables for use within the case’s body, and complex matching conditions can be expressed with a where clause for each case. For-In Loops : let names = [ "Anna" , "Alex" , "Brian" , "Jack" ]