jQuery change existing img alt tag

StackOverflow https://stackoverflow.com/questions/17528934

  •  02-06-2022
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문제

Simple question. I am trying to change all the image alt tags on my site using jQuery. The issue I'm having is that all my images have existing alt tags that I want to add to. Currently my code won't do anything, here is what I have placed just before closing the 

<script>
$("img").attr({
alt: "This is some alt text"
});
</script>

Can someone help me figure out what is wrong here. Thanks.

도움이 되었습니까?

해결책

After jQuery 1.6 prop() is the correct one to use:

$("img").prop("alt", "This is some alt text");

http://blog.jquery.com/2011/05/12/jquery-1-6-1-released/

다른 팁

You can try this:

$(function() {
   $('img').attr('alt', 'Some Alt Text Here');
}

Your code should work, but you should use prop like this instead $("img").prop('alt': 'This is some alt text');.
You might be missing this inside you <head> tags to actually load jQuery: 

<script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.1/jquery.min.js"></script>
  • Keep in mind that what you want will change alt to all images...
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