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Can i get and element by data added with jquery? For Example

 function first() { var modal_body = $('.modal-body'); modal_body.data('id',4) } function second() { var modal_body = $('.modalbody[data-id=4]'); }

I've already tried this example, but it doesn't work because the element doesn't have data-id. Jquery saves data internally and creates an empty object called $.cache.

Is there any posibility to get the element, which contains data added with Jquery?

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  • change $('.modalbody[data-id=4]'); to $('.modal-body[data-id=4]'); Commented Mar 23, 2018 at 10:59
  • @AlivetoDie That's an attribute selector, but there's no data-id attribute in the markup, hence this doesn't work. Commented Mar 23, 2018 at 11:01
  • @Andreas that suggest dup is the exact opposite of your earlier comment - there is no data- attribute. Commented Mar 23, 2018 at 11:07
  • @freedomn-m The question has answers that match exactly this requirement: stackoverflow.com/a/15651670/402037, stackoverflow.com/a/22209579/402037 Commented Mar 23, 2018 at 11:09
  • @Andreas thanks for clarifying - the question itself is not the same, nor is the answer - but as you say, there are suitable and relevant responses Commented Mar 23, 2018 at 11:13

2 Answers 2

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Unfortunately, no.

As you said, the data properties are added internally by jQuery. The only way to achieve what you want is to set attributes directly:

 function first() { var modal_body = $('.modal-body'); modal_body.attr('data-id',4) } function second() { var modal_body = $('.modal-body[data-id=4]'); // note: fixed .modalbody to .modal-body }

Which makes it available as .data('id') as well.

Another alternative would be to use .filter():

 function first() { var modal_body = $('.modal-body'); modal_body.data('id',4) } function second() { var modal_body = $('.modal-body').filter(function () { return $(this).data('id') === 4; }); }

Demo below.

(() => { var modal_body = $('div.modal-body'); modal_body.attr('data-id', 4) console.log('found using attr:', $('.modal-body[data-id=4]').length); })(); (() => { var modal_body = $('span.modal-body'); modal_body.data('id', 4) console.log('found using filter:', $('span.modal-body').filter(function() { return $(this).data('id') === 4; }).length); })();
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div class="modal-body">modal-body</div> <span class="modal-body">modal-body</span>

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Thanks, Few minutes ago I found the post width the filter function.
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Not with a single selector, but certainly using .filter():

$("#x").data("data", "a"); $("#y").data("data", 4); var x2 = $("div").filter(function() { return $(this).data("data") != null; }); var y4 = $("div").filter(function() { return $(this).data("data") === 4; }); console.log("Divs:", $("div").length, "With ID:", x2.length, "With id==4:", y4.length); x2.addClass("box"); y4.addClass("box4");
div { border: 1px solid #CCC; } .box { border: 1px solid green; } .box4 { border: 1px solid red; }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div id='x'>x</div> <div id='y'>y</div> <div id='z'>y</div>

Update: check for explicit data value, not just any

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Already marked the post as duplicate. The filter function solved the problem. Thanks

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