JAVASCRIPT

javascript sleep

const sleep = (milliseconds) => {
  return new Promise(resolve => setTimeout(resolve, milliseconds))
}

/*Use like so*/

async function timeSensativeAction(){ //must be async func
  //do something here
  await sleep(5000) //wait 5 seconds
  //continue on...
}

sleep javascript

console.log("Hello");
setTimeout(() => { console.log("World!"); }, 5000);
console.log("Goodbye!");

javascript sleep

function sleep(milliseconds) {
  const date = Date.now();
  let currentDate = null;
  do {
    currentDate = Date.now();
  } while (currentDate - date < milliseconds);
}

console.log("Hello");
sleep(2000);
console.log("World!");

sleep function javascript

How to get a JavaScript sleep function

First, you must sacrifice JS to the gods of asynchronous programming.
Then, go to grepper and ctrl c + v some code with no idea how to use it.
Give up.
Realise you didnt need it in the first place.
Die inside a little.
Realise you should have stayed with python.
Learn Java out of frustration.

sleep js

const sleep = ms => new Promise(r => setTimeout(r, ms));
sleep(5000)

OR

> npm i sleepjs

const { sleep } = require('sleepjs')
await sleep(500)

sleep javascript

//Javascipt is asyncronous so you can't pause/block code execution
//You can delay doing something with setTimeout
setTimeout(function(){
 	alert("Sup!"); 
}, 2000);//wait 2 seconds

js sleep

function sleep(milliseconds) {
  var start = new Date().getTime();
  for (var i = 0; i < 1e7; i++) {
    if ((new Date().getTime() - start) > milliseconds){
      break;
    }
  }
}
console.log('First');
sleep(1000);
console.log('Second');

javascript sleep function

sleep = milliseconds => new Promise(resolve => setTimeout(resolve, milliseconds));

//        V  Must add this async keyword
sayHi = async () => {
  	// V Must include await
	await sleep(1000); // Sleep 1000 milliseconds (1 second)
  	console.log('Hi');
  	// Rest of code...
}

sleep function js

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

sleep js

await new Promise(r => setTimeout(r, 2000));

sleep js

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

async function demo() {
  console.log('Taking a break...');
  await sleep(2000);
  console.log('Two seconds later, showing sleep in a loop...');

  // Sleep in loop
  for (let i = 0; i < 5; i++) {
    if (i === 3)
      await sleep(2000);
    console.log(i);
  }
}

demo();

javascript sleep

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

async function delayedGreeting() {
  console.log("Hello");
  await sleep(2000);
  console.log("World!");
  await sleep(2000);
  console.log("Goodbye!");
}

delayedGreeting();

js sleep

// sleep time expects milliseconds
function sleep (time) {
  return new Promise((resolve) => setTimeout(resolve, time));
}

// Usage!
sleep(500).then(() => {
    // Do something after the sleep!
});

sleep javascript

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

async function demo() {
    for (let i = 0; i < 5; i++) {
        console.log(`Waiting ${i} seconds...`);
        await sleep(i * 1000);
    }
    console.log('Done');
}

demo();
 Run code snippet

sleep javascript

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

async function demo() {
    for (let i = 0; i < 5; i++) {
        console.log(`Waiting ${i} seconds...`);
        await sleep(i * 1000);
    }
    console.log('Done');
}

demo();
 Run code snippet

sleep js

function sleepFor( sleepDuration ){
    var now = new Date().getTime();
    while(new Date().getTime() < now + sleepDuration){ /* do nothing */ } 
}

// Use like so:

sleepFor(1000)
alert("hi")

sleep javascript

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

async function demo() {
    for (let i = 0; i < 5; i++) {
        console.log(`Waiting ${i} seconds...`);
        await sleep(i * 1000);
    }
    console.log('Done');
}

demo();
 Run code snippet

javascript sleep

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

async function demo() {
  console.log('Taking a break...');
  await sleep(2000);
  console.log('Two seconds later, showing sleep in a loop...');

  // Sleep in loop
  for (let i = 0; i < 5; i++) {
    if (i === 3)
      await sleep(2000);
    console.log(i);
  }
}

demo();
 Run code snippetHide results

js sleep

// Sync version
function sleep(sleepDuration){
    var now = new Date().getTime();
    while(new Date().getTime() < now + sleepDuration){ /* do nothing */ } 
}

js sleep

//Sleep funktion

function sleep(ms) {
    return new Promise(resolve => setTimeout(resolve, ms));
}
//Or as a one-liner:

await new Promise(r => setTimeout(r, 2000));
//As a function:

const sleep = ms => new Promise(r => setTimeout(r, ms));
//or in Typescript:

const sleep = (ms: number) => new Promise((r) => setTimeout(r, ms));
//use it as:

await sleep(<duration>);

javascript sleep 1

function delay(time) {
  return new Promise(resolve => setTimeout(resolve, time));
}

delay(1000).then(() => console.log('ran after 1 second1 passed'));
function test2()
{
    // defer the execution of anonymous function for 
    // 3 seconds and go to next line of code.
    setTimeout(function(){ 

        alert('hello');
    }, 3000);  

    alert('hi');
}

javascript sleep

console.log("Hello");
setTimeout(() => {  console.log("World!"); }, 5000);

javascript sleep

console.log('Hello')
sleep(2000)
  .then(() => console.log('world!'))
  .then(() => sleep(2000))
  .then(() => console.log('Goodbye!'))

js sleep

function sleep(ms) {
    var start = new Date().getTime();
    while (new Date().getTime() < start + ms);
}

JS sleep function

/**
* Delay for a number of milliseconds
*/
function sleep(delay) {
    var start = new Date().getTime();
    while (new Date().getTime() < start + delay);
}

javascript function to sleep

setTimeout(function (){
  
  // Something you want delayed.
            
}, 5000); // How long you want the delay to be, measured in milliseconds.

JavaScript Sleep Function

await sleep(<duration>);

sleep javascript

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