JQuery: 选择不为空的数据属性？

我试图选择所有具有不为空的 data-go-to属性的元素。

我试过 $('[data-go-to!=""]')，但奇怪的是，如果我这样做，它似乎会选择页面上的每一个元素。

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I'm not sure about a simple selector, but you could use filter():

$('[data-go-to]').filter(
function(){
return ($(this).attr('data-go-to').length > 0);
});

JS Fiddle demo.

References:

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Try this :

$('[data-go-to:not(:empty)]')
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According to the documentation this should do it

:not([attr="value"])

DEMO

Hope this helps

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最佳答案

try

$(':not([data-go-to=""])')

UPDATE:

For the sake of not leading anyone astray, this answer will work in older versions of jQuery but is not future-proof. Since @gmo and @siva's answers both seem to be working with later versions I defer to (and encourage you to upvote) their answers....and of course hope you have a fantastic day.

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$('[data-go-to]').filter(function() {
return $(this).data('go-to')!="";
});

Using :not, .not(), :empty etc will only check if the element itself is empty, not the data attribute. For that you will have to filter based on the data attributes value.

FIDDLE

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$('[data-go-to!=""]:[data-go-to]').each(function() {
// Do Your Stuff
});​
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Just as further reference, and an up-to-date (may'14) (aug'15) (sep'16) (apr'17) (mar'18) (mar'19) (may'20) (jan'22)...
Answer that works with:

###Empty strings: If the attr must exist & could have any value (or none at all)

    jQuery("[href]");

###Missing attributes: If attr could exist & if exist, must have some value

    jQuery("[href!='']");

###Or both: If attr must exist & has to have some value...

    jQuery("[href!=''][href]");

PS: more combinations are possible...

###Check this test in jsFiddle for examples:

###Or here in SO with this Code Snippet.
* Snippet is running jQuery v2.1.1

jQuery('div.test_1 > a[href]').addClass('match');
jQuery('div.test_2 > a[href!=""]').addClass('match');
jQuery('div.test_3 > a[href!=""][href]').addClass('match');
div,a {
display: block;
color: #333;
margin: 5px;
padding: 5px;
border: 1px solid #333;
}
h4 {
margin: 0;
}
a {
width: 200px;
background: #ccc;
border-radius: 2px;
text-decoration: none;
}
a.match {
background-color: #16BB2A;
position: relative;
}
a.match:after {
content: 'Match!';
position: absolute;
left: 105%;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="test_1">
<h4>Test 1: jQuery('a[href]')</h4>
<a href="test">href: test</a>
<a href="#">href: #</a>
<a href="">href: empty</a>
<a>href: not present</a>
</div>
<div class="test_2">
<h4>Test 2: jQuery('a[href!=""]')</h4>
<a href="test">href: test</a>
<a href="#">href: #</a>
<a href="">href: empty</a>
<a>href: not present</a>
</div>
<div class="test_3">
<h4>Test 3: jQuery('a[href!=""][href]')</h4>
<a href="test">href: test</a>
<a href="#">href: #</a>
<a href="">href: empty</a>
<a>href: not present</a>
</div>

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$('[data-go-to]:not([data-go-to=""])')

JSBIN

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Has 'data-attributename' and its value is not empty: 

$('[data-attributename]:not([data-attributename=""])')

Has 'data-attributename' empty or not:

$('[data-attributename]')

JS Fiddle example

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This works for me

$('[attributename]').filter('[attributename!=""]')
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This works for me:

$('.data .title td[data-field!=""]')

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