JSFiddle - React, Tailwind, and code Playground

by fullyslick

HTML

<div>
  <span>
    <h1></h1>
  </span>
</div>

JavaScript

var a='a';

function b(){
 var a = 'b';
 console.log(a);
}

b(); // ?
var d1='global';
function a1() {
 b1();
 var c1='a func';
}
function b1() {
 var d1 = 'b func';
}
a1();

console.log(d1); // ?