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while statement

The while construct sets a loop. A code placed inside it will be repeated a certain number of times.

Syntax

while ( while an expression is true ) {
	execute this code
};

Example

Let's output numbers from 1 to 10:

let i = 1;

while (i <= 10) {
	console.log(i);
	i++;
}

Example

Let's output even numbers from 2 to 10:

let i = 2;

while (i <= 10) {
	console.log(i);
	i += 2;
}

See also

the lesson from JavaScript tutorial
detailing how to work with the while loop
the for statement
that also creates a loop
the break statement
that breaks a loop
the continue statement
that moves a loop to next iteration

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