JSFiddle - React, Tailwind, and code Playground

HTML

<!-- 
    
    Explanation:

    test 0 contains a declaration, and some computation with short a variable name ( a ).
    test 1 contains a declaration, and the same computation with a heavily long variable name ( aaaaaa... )

    after performance testing, the result window shows which one was faster at the test,

-->

JavaScript

var test0 = function () {

    var a = 0;

    while (a < 10000) {

        a++;

    }

};

var test1 = function () {

    var...