JAVASCRIPT

date time js

//Do you need the current time ? ⌚
let date = new Date();
let time = ((date.getHours().toString()).length>1? date.getHours() : "0"+date.getHours()) +":"+ ((date.getMinutes().toString()).length>1? date.getMinutes() : "0"+date.getMinutes());
//If 4h-2min => 04:02
//If 20h-15min => 20:15

js time function

const t0 = performance.now();
doSomething();
const t1 = performance.now();
console.log(`Call to doSomething took ${t1 - t0} milliseconds.`);