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How to check class name using javascript?? I am using this statement.. if (document.getElementByClass("expandable")

but it give me error.. "Object doesn't support this property or method"

SST
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    doubled question http://stackoverflow.com/questions/1422629/jquery-object-doesnt-support-this-property-or-method-in-internet-explorer – Anatoly Aug 05 '11 at 08:59
  • if you want to check class name of some element - document.getElementById('myid').className. What you are trying to do is get elements that have some class as it seems to me... – Gatekeeper Aug 05 '11 at 09:04
  • possible duplicate of [Get All Elements in an HTML document with a specific CSS Class](http://stackoverflow.com/questions/210377/get-all-elements-in-an-html-document-with-a-specific-css-class) – Felix Kling Aug 05 '11 at 10:43

4 Answers4

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Because you just made that method up!

You want document.getElementsByClassName: https://developer.mozilla.org/en/DOM/document.getElementsByClassName

Evan Trimboli
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There is no function document.getElementByClass. Either check for the property .className of potential objects, or use a higher level framework which implements this (Such as jquery). This is the syntax with jquery:

$(".expandable")
troelskn
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Via pure javascript:
You can use the getElementsByClassName from this question

With jQuery, this is lot more simple, use the class selector:

$(".className)
Community
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Nivas
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  1. There is no function like getElementByClass.

  2. You have to use document.getElementsByClassName; it will return an array so you have to use loop to get values.

But MSIE will not support this function so you have to check your class name like:

((document.getElementsByTagName("div"))[i].className)=="yourclassname"
Jonathan Leffler
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Benz
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