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Possible Duplicate:
Get all Attributes from a HTML element with Javascript/jQuery
I need to retrieve all attributes of a DOM element. I’ve seen the getAttribute() method, but I don’t know the names of the attributes in advance. If I use getElementById() to retrieve an element, how do I then access all attributes of that element and their values?
Each DOM node has an
attributesproperty, which is a NamedNodeMap (essentially an array with a few extra features). In particular this means you can getelem.attributes.lengthand loop through them.Each individual attribute is an Attr object, which has (among other things)
nameandvalueproperties.Note that IE7 and below have a list of all attributes that could possibly be defined (84 in all) whether or not they are actually on the element. You may want to run a quick check for falsy values before actually including an attribute value.