JavaScript Promises, road to async/await - https://codingblast.com/javascript-promise-async-await

setTimeout.js

setTimeout(() => {
  console.log('inside of setTimeout()');
}, 0)

console.log('A very long for-loop incoming..');

let sum = 0;

console.time('forLoopTimer');

for(let i = 1; i < 100000; i++) {
    sum += i;
}

console.timeEnd('forLoopTimer');

console.log('After the for-loop');