Add custom attribute to HTML tags

Question

I am adding custom attributes to my HTMLtags something like

<li customeId="1">

I am to access this custom attribute in IE but in firefox, I am not able to get the values of these attributes. Any suggestion on how to access custom attribute in FireFox or any other way. I am using HTML 4 for development.

Code to access:

  var test =  licollection[index].customeId;

Thanks Ashwani

Answer 1

Hopefully below code will be helpful for you.

<div id="navigation">
 <ul>
  <li customerId="1"></li>
  <li customerId="2"></li>
  <li customerId="3"></li>
 </ul>
</div>

var x = document.getElementById('navigation');
if (!x) return;
var liCollections = x.getElementsByTagName('li');
for (var i=0;i<liCollections.length;i++)
   alert(liCollections[i].getAttribute('customerid', 0));

It's clear enough, and you can understand it easily.

Answer 2

You can use HTML 5 custom data attribute functionality, it may helps you

Attribute Name

The data attribute name must be at least one character long and must be prefixed with 'data-'. It should not contain any uppercase letters.

Attribute Value

The attribute value can be any string.

Example :-

<ul id="vegetable-seeds">
  <li data-spacing="10cm" data-sowing-time="March to June">Carrots</li>
  <li data-spacing="30cm" data-sowing-time="February to March">Celery</li>
  <li data-spacing="3cm" data-sowing-time="March to September">Radishes</li>
</ul>