Javascript – Assign attribute

[bzmillerboy]

I was able to do this with jQuery but I’m wondering how I can do the following with strictly javascript.

Basically I want to add the attribute size=”2″ to the select element under the div with ID=”planSelectionDiv”.

I appreciate any help.

[bzmillerboy]

Anyone…Anyone…?

[TT_Mark]

Something like?

var eSelect = document.getElementsById('planSelectionDiv ').getElementsByTagName('select');



eSelect.setAttribute("size", "2");

Not tested, just guessing!

[noahgelman]

You shouldn’t have to set a variable if you don’t want to. Depending on what you’re using it for, it probably is a better idea to. But just in case, here it is on one line.

document.getElementsById('planSelectionDiv ').getElementsByTagName('select').setAttribute("size", "2");

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Edit: Sorry, bad advice. After trying it out, apparently you can’t just chain them together like that. You have to use a variable like TT_Mark suggested.

[TT_Mark]

@noahgelman As you have said, I *think* you can only chain like that in JQuery

[noahgelman]

Yeah, jQuery is pretty convenient for chaining things together.

A quick question though. if bzmillerboy simply wanted to set the attribute to 2 why go:

.attr("size", function() { return '2'; })

and simply not:

.attr("size", "2"})

[TT_Mark]

No idea :S, although you have a typo in your second example

[noahgelman]

Oops, so I do. My bad. But still, that function he wrote confuses me

[Author]

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