JSFiddle - React, Tailwind, and code Playground
JavaScript
console.log(+new Date(), window.name, 'init');
var i = 0;
setTimeout(() => {
console.log(+new Date(), window.name, 'start');
for (i = 0; i < 1000000000; ++i) { }
console.log(+new Date(), window.name, 'stop');
}, 1000)