JavaScript Promises Delay function call


The setTimeout() method calls a function or evaluates an expression after a specified number of milliseconds. It is also a trivial way to achieve an asynchronous operation.

In this example calling the wait function resolves the promise after the time specified as first argument:

function wait(ms) {
    return new Promise(resolve => setTimeout(resolve, ms));  

wait(5000).then(() => { 
    console.log('5 seconds have passed...');