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Javascript Do While Loops

05:40
There’s another, less common type of loop, known as a do/while loop. This type of
loop works nearly identically to a while loop. Its basic structure looks like this:

do {
// javascript to repeat
} while (condition) ;

do {
var luckyNumber = prompt('What is your lucky number?','');
luckyNumber = parseInt(luckyNumber, 10);
} while (isNaN(luckyNumber));

Save this file and preview it in a web browser. Try typing text and other nonnumeric
symbols in the prompt dialog box. That annoying dialog box continues
to appear until you actually type a number.
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