how to set time out in js

setTimeout(function(){
 	console.log("hello");
}, 3000); //wait for atleast  3 seconds before console logging

setTimeout(() => { alert('Hello') }, 1000)

 setTimeout(function(){ alert("Hello"); }, 3000);

 

var timeToWait = 3000; // 1000 = 1 second
setTimeout(() => {
	console.log("Text printed after 3 seconds");
}, timeToWait);