36 lines
1.0 KiB
Markdown
36 lines
1.0 KiB
Markdown
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---
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title: Do...While Loop
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---
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The `do...while` loop is closely related to <a href='http://forum.freecodecamp.com/t/javascript-while-loop/14668' target='_blank' rel='nofollow'>`while`</a> loop. In the do while loop, the condition is checked at the end of the loop.
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Here is the **syntax** for `do...while` loop:
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## Syntax:
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do {
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*Statement(s);*
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} while (*condition*);
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**statement(s):** A statement that is executed **at least once** before the condition or Boolean expression is evaluated and is re-executed each time the condition evaluates to true.
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**condition:** Here, a condition is a <a>Boolean expression</a>. If Boolean expression evaluates to true, the statement is executed again. When Boolean expression evaluates to false, the loops ends.
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## Example:
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var i = 0;
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do {
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i = i + 1;
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console.log(i);
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} while (i < 5);
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Output:
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1
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2
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3
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4
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5
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source: <a href='https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/do...while' target='_blank' rel='nofollow'>**do...while**</a>
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