JS TutorialLesson 13Free preview

JS Loops

This lesson is part of JavaScript · All levels

Summary

Loops are used to repeat blocks of code without writing them over and over again. JavaScript recognizes for for iterations with a calculator, while for condition-based iterations, and do...while that always run blocks at least once. The break statement stops the repetition completely, while continue jumping through the rest of the iteration and proceeding to the next iteration.

Key points

For is appropriate when the number of repetitions is known from the beginning
While repeating during the still condition
Do... execute the block at least once before checking the condition
Break stop the loop, continue passing to the next iteration

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