When working with the while or until loops, the do or : are mutually exclusive and can be omitted if the loop is spread out over more than one line.

Question

Quizplus · Accepted Answer

The do and : keywords are not mutually exclusive when working with while or until loops. In fact, one of them must be used to indicate the start of the loop body. Additionally, the do keyword cannot be omitted when working with multi-line loops as it is necessary to indicate when the loop body begins and ends.

When Working with the While or Until Loops, the Do