node.js: while loop callback not working as expected

Question

Knowing that while Node.js is working asynchronously, writing something like this:

function sleep() {
    var stop = new Date().getTime();
    while(new Date().g         


        

Answer 1

You are calling sleep right away, and the new sleep function blocks. It keeps iterating until the condition is met. You should use setTimeout() to avoid blocking:

setTimeout(function () {
    console.log('done sleeping');
}, 15000);