JSFiddle - React, Tailwind, and code Playground

JavaScript

name = 'Bic'; // implicitly global

    function myFunc() {
        var name = 'John'; // this variable is scoped here
        console.log(name); // John
        getName();
    }

    function getName() {
        console.log(name); // Bic
    }

    myFunc();
    getName();