sleep in react code example

Example 1: sleep in react

sleep = (milliseconds) => {
        return new Promise(resolve => setTimeout(resolve, milliseconds))
    }
	
    componentDidUpdate(prevProps, prevState, snapshot) {
            this.sleep(5000).then(r => {
            // do something
      	    })
    }

Example 2: node wait 10 seconds

async function init() {
  console.log(1);
  await sleep(1000);
  console.log(2);
}

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

// one liner
let sleep = ms => new Promise(resolve => setTimeout(resolve, ms));

Example 3: javascript sleep settimeout

setTimeout(() => {  console.log("World!"); }, 2000);