Answers for "set timeInterval"

javascript settimeout

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

js setinterval

function func(){
  console.log("Ran")
}
setInterval(func,1000)//Runs the "func" function every second

how to do a function after a set interval js

function sayHi() {
  alert('Hello');
}
//Do a function at a set interval continuously
setTimeout(sayHi, 1000);
//Do a function once after a set interval
setTimeout(sayHi, 1000);