JSFiddle - React, Tailwind, and code Playground
by csnsgiri
JavaScript
var str = "01 ";
var num = parseInt(str.split(' ')[0], 10);
var id = ('0' + num).slice(-2);
console.log(id );
console.log(num );
var newStr = str.split(' ').slice(1).join(' ')
console.log(newStr)
function isNumber(n) { return /^-?[\d.]+(?:e-?\d+)?$/.test(n); }
console.log(isNumber(num));