Swift BasicsLesson 17Free preview

Swift While Loop

This lesson is part of Swift · All levels

Summary

This lesson discusses the whilst and repeat-while repetitions in Swift. Repetition while evaluates the condition before the instruction block is executed, whereas repeat-while (similar to do-while in other languages) executes the code block at least once before the condition is checked at the end of the iteration.

Key points

The repetition of 'while (condition) ' runs repeatedly during the value of the condition.
Repeat-while code runs before evaluating the condition
The keyword 'repeat' replaced the traditional keyword 'do' to avoid confusion with do-catch error handling
Supports the keywords 'break' and 'continue' for loop loop diversion

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