JS_CallStackExecution_Demo

JS_CallStackExecution_Demo.js

console.log("1");
(function level1(){
  console.log("2");
  setTimeout(function async1(){
    console.log("3");
  },0);
  (function level2(){
    console.log("4");
    setTimeout(function async2(){
      console.log("5");
    },0);
    console.log("6");
  })();
  console.log("7");
})();
console.log("8");