How to set data attributes in HTML elements

0 votes
I have a div with an attribute data-myval = "10". I want to update its value; wouldn't it change if I use div.data('myval',20)? Do I need to use div.attr('data-myval','20') only?

Am I getting confused between HTML5 and jQuery? Please advise. Thanks!

Updated div.data('myval')=20 to div.data('myval',20), but still the HTML is not updating.
Oct 5, 2020 in JQuery by kartik
• 37,500 points
321 views

1 answer to this question.

0 votes

Hello @kartik,

HTML

<div id="mydiv" data-myval="10"></div>

JS

var a = $('#mydiv').data('myval'); //getter

$('#mydiv').data('myval',20); //setter

Hope it helps!!

Thank you!!

answered Oct 5, 2020 by Niroj
• 82,740 points

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