loop in swift

There are three types of loops available in Swift: the for-in loop, the while loop, and the repeat-while loop.

1. The for-in loop:

   • It iterates over a sequence such as an array or a range.

   Example:

   main.swift
   let names = ["Alice", "Bob", "Charlie"]
   for name in names {
       print("Hello, \(name)!")
   }
   91 chars
   5 lines

   Output:

   main.swift
   Hello, Alice!
   Hello, Bob!
   Hello, Charlie!
   42 chars
   4 lines

2. The while loop:

   • It repeats a block of code until the condition is false.

   Example:

   main.swift
   var x = 5
   while x > 0 {
       print(x)
       x -= 1
   }
   50 chars
   6 lines

   Output:

   main.swift
   5
   4
   3
   2
   1
   10 chars
   6 lines

3. The repeat-while loop:

   • It is similar to the while loop except that it checks the condition at the end of the loop instead of the beginning.

   Example:

   main.swift
   var y = 5
   repeat {
       print(y)
       y -= 1
   } while y > 0
   57 chars
   6 lines

   Output:

   main.swift
   5
   4
   3
   2
   1
   10 chars
   6 lines