How to check if href attribute contains a string?
Question
I want to get all "a" tags from page, get its "href" attribute and check if in this href is text ".pdf". So I get all a tags into tags variable, then with each() function I check every "a" (as a tag ). But code:
if ($(tag).indexOf('.pdf') > 0)
console.log($(tag));
is not working. Why? Why I can't use indexOf on href ? I tried with search() function, but it's also not working.
So I thought - ok, there's something wrong with this href . Lets take it as a text.
But code:
var text = $(tag).text();
console.log(text);
is also not working. Can anybody tell me why?
Code snippet has errors intentionally - to show with what I have a problem.
Thank you in advance.
(function($){ var tags = $('a'); $(tags).each(function() { var tag = $(this).attr('href') if ($(tag).indexOf('.pdf') > 0) console.log($(tag)); var text = $(tag).text(); console.log(text); }); }(jQuery));
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <html> <a href="https://www.test.com/example.pdf" target="_blank">Link with ".pdf"</a> <a href="https://www.test.com/" target="_blank">Link without ".pdf"</a> </html>
1 answers
solution1
3 ACCPTED 2020-04-24 14:09:43
No need to for the additional $(tag) when calling indexOf. tag is a string at that point and you don't need to make it a jQuery object. simply call tag.indexOf('.pdf') > 0 . For strings you can also use tag.includes('.pdf') or you go for tag.substr(tag.length - 4, 4) === '.pdf' to make it even more precise.
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