wait a line of code before the rest javascript code example

Example 1: 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!");

Example 2: how to wait in javascript

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

//Pause for 1000 milliseconds

pause(1000)

Example 3: 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...
}

Example 4: javascript wait 5 seconds

timeout(ms) { //pass a time in milliseconds to this function
    return new Promise(resolve => setTimeout(resolve, ms));
  }