JSFiddle - React, Tailwind, and code Playground

by jmd386

JavaScript

var i = 2019;     // global scope
function myFunction() {
  var j = 2020;   // function scope
  console.log(i); // 2019
  console.log(j); // 2020
}
myFunction();
console.log(i);   // 2019
//console.log(j); // undefined