Javacadabra Javacadabra - 1 year ago 277
Javascript Question

TypeError getElementsByTagName is not a function issue

I'm having trouble getting to the source of this problem. Basically the error message I am getting in my console is:

TypeError: $(...).getElementsByTagName is not a function

When I click through to the line it is occuring on it is here:

var inputs = $('directoryresults').getElementsByTagName('input');

I'm not sure why this is happening as I have included
in the header of the page itself:

<script src=""></script>
<script src=""></script>

Does anyone have any ideas what might be causing this?

Answer Source

Does anyone have any ideas what might be causing this?

The object returned by the jQuery constructor doesn't have the .getElementsByTagName() method.

$('selector') returns a jQuery object. .getElementsByTagName() is a native JavaScript method of DOM elements.

To look for elements with a certain tagname using the jQuery object you currently have:

var inputs = $('directoryresults input');
// OR
var inputs = $('directoryresults').find('input');

To get a like-for-like node list that .getElementsByTagName() would return (note this isn't exactly the same, this will return an array where .getElementsByTagName() will return a HTMLCollection):

var inputs = $('directoryresults input').get();

Note: directoryresults, I am assuming, is either a class or id of a DOM element. Either way you'll want to amend the selector above

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