Sleep in JavaScript - delay between actions

Question

Is there a way I can do a sleep in JavaScript before it carries out another action?

Example:

 var a = 1+3;
 // Sleep 3 seconds before the next action         


        

Answer 1

This is my model that shows how to "sleep" or "DoEvents" in javascript using a generator function (ES6). Commented code:

 Hit me to see if I'm alive