Over a million developers have joined DZone.
{{announcement.body}}
{{announcement.title}}

Array.indexOf Fix //JavaScript Function

DZone's Guide to

Array.indexOf Fix //JavaScript Function

·
Free Resource
Just an idiot fix to increase the number of my posts =b


//+ Jonas Raoni Soares Silva
//@ http://jsfromhell.com
[].indexOf || (Array.prototype.indexOf = function(v){
       for(var i = this.length; i-- && this[i] !== v;);
       return i;
});


example


var x = [0,1,2,3];

alert(x.indexOf(2));
alert(x.indexOf(4));
Topics:

Opinions expressed by DZone contributors are their own.

THE DZONE NEWSLETTER

Dev Resources & Solutions Straight to Your Inbox

Thanks for subscribing!

Awesome! Check your inbox to verify your email so you can start receiving the latest in tech news and resources.

X

{{ parent.title || parent.header.title}}

{{ parent.tldr }}

{{ parent.urlSource.name }}