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html - how to get custom attribute of option tag in dropdown?

Asked 2012-08-14T17:32:49.847
46

If I have this code:

 <select onchange="alert('?');" name="myname" class="myclass"> 
    <option isred="-1" value="hi">click</option>
 </select>

How can I get the value '-1' from the custom attribute isred ? I don't want to use the value property. And I dont want to target the option tag by a name or id.

I want something like onchange="alert(this.getselectedoptionID.getAttribute('isred'));"

Can anyone help?

Also I don't want to use jquery.

javascript html select
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1 Answer

1

You use: .getAttribute('isred')

You want:

<select onchange="alert(this.options[this.selectedIndex].getAttribute('isred'));" name="myname" class="myclass">
    <option isred="-1" value="hi">click</option>
    <option isred="-1" value="ho">click</option>
</select>
answered 2012-08-14T17:35:50.867

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