javascript settimeout and setinterval code example

Example 1: js wait for time

function sleep(milliseconds) {
  const start = Date.now();
  while (Date.now() - start < milliseconds);
}

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

Example 2: timer in javascript

//single event i.e. alarm, time in milliseconds
var timeout = setTimeout(function(){yourFunction()},10000);
//repeated events, gap in milliseconds
var interval = setInterval(function(){yourFunction()},1000);