JSFiddle - React, Tailwind, and code Playground

by Chuan Shao

JavaScript

//Test toString()
var a = 42;
console.log(a.toString(2));//101010
console.log(a.toString());//42
console.log("0x" + a.toString(16));//0x2a
var b = 0xff;
console.log(b.toString());//255

//Test toFixed()
var x = 17.38;
console.log(x.toFixed(0));//17
console.log(x.toFixed(1));//17.4
console.log(x.toFixed(4));//17.380
console.log(x.toFixed(-1));//20

//Test toExponential()
var y = 17951.38596;
console.log(y.toExponential(1));//1.8e+4
console.log(y.toExponential(0));//2e+4

//Test toPrecision()
var z = 17951.38596;
console.log(z.toPrecision(8));
console.log(z.toPrecision(3));