JavaScript Code

JavaScript Infinite While Loop

Infinite While Loop

while (true) {


  • while is keyword
  • true is boolean value
  • code is any valid JavaScript code

If the condition is always true in a while loop, then the while loop runs indefinitely. Therefore we have an infinite while loop.

Instead of true for the condition, we can also provide a boolean expression that always evaluates to true, like 1 == 1.


1. While loop to print 'hello world' indefinitely.

let i = 0;
while (true) {
    console.log('hello world');

Note: Do not run this code. your browser may freeze, or raise an alert.