setinterval or settimeout javascript code example

Example 1: difference between setTimeout() and setInterval()

.setTimeout() //executes the code after x seconds.
.setInterval() //executes the code **every** x seconds.

Example 2: js wait for time

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

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