How can i make a delay in js?

Question

i want to do something like
doSomething()
delay(1)
doSomethingElse()

Answer 1

u can use setinterval or settimeout

Answer 2

var timeout = 1000;//timeout in milliseconds
doSomething();
var timer = setTimeout(doSomethingElse, timeout);

here is my countdown web code(I hope it helps you to understend how it works):

https://code.sololearn.com/W5zYPmG4zS8W/?ref=app