while Statement

See Also

Description

Executes a statement until a specified condition is false.

Syntax

while (expression)
   statement

The while statement syntax has these parts:

Part	Description
expression	A Boolean expression checked before each iteration of the loop. If expression is true, the loop is executed. If expression is false, the loop is terminated.
statement	The statement to be executed if expression is true. Can be a compound statement.

Remarks

The while statement checks expression before a loop is first executed. If expression is false at this time, the loop is never executed.

The following example illustrates the use of the while statement:

function BreakTest(breakpoint)
{
   var i = 0;
   while (i < 100)
   {
   if (i == breakpoint)
     break;
     i++;
   }
   return(i);
}