DevMountain- Falsy Values

by Matthew Day February 29, 2016

HTML

<div id="feedback"></div>

JavaScript

var falsyArray = [];

falsyArray.push(false);
falsyArray.push(0);
falsyArray.push('');
falsyArray.push(undefined);
falsyArray.push(null);
falsyArray.push(NaN);

var showResult = document.getElementById('feedback');
showResult.textContent = falsyArray;

// see https://developer.mozilla.org/en-US/docs/Glossary/Falsy

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DevMountain- Falsy Values

HTML

JavaScript

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Join the 4+ million users, and keep the JSFiddle dream alive.

Ad-free

Use pre-released features

Fiddle collections

Private collections and fiddles

Console