Edit fiddle - JSFiddle - React, Tailwind, and code Playground

JSFiddle - React, Tailwind, and code Playground

JavaScript

var arr = [2,3,4];
var obj = {'1':'one','2':'two','3':'three'};
document.write('<p>for each with array</p>');
for each(var key in [1,2,3]) document.write('<p>' + key + '</p>');
document.write('<p>for each with object</p>');
for each(var key in obj) document.write('<p>' + key + '</p>');

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JSFiddle - React, Tailwind, and code Playground

JavaScript

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Use pre-released features

Fiddle collections

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Console