I have a simple list of links:
<ul> <li><a href="1">link 1</a></li> <li><a href="2">link 2</a></li> <li><a href="3">link 3</a></li> <li><a href="4">link 4</a></li> <li><a href="5">link 5</a></li> <li><a href="6">link 6</a></li> <li><a href="7">link 7</a></li> <li><a href="8">link 8</a></li> <li><a href="9">link 9</a></li> <li><a href="10">link 10</a></li></ul>How do I select these links with jQuery?
$('a') – this returns all the links
How do I get all the contents of these links (“link 1”, “link 2”, “link 3″…)?
$('a').text()
How do I get all the hrefs from the links (1, 2, 3…)?
$('a').attr('href')
NOT TRUE ^
IT SELECTS ONLY THE FIRST LINK and returns 1 instead of [1, 2, 3, 4, 5, 6, 7, 8, 9, 10].
I know I could map, do each etc. but I’m writing a crawler that uses this a lot and wondered why is this happening and whether I can get all the hrefs without any loops here, just using jQuery’s (preferably jQuery core) selectors?
Demo: https://jsfiddle.net/z5j1ty08/
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Answer
You can’t really loop over DOM elements without, well, looping through them.
Looping won’t have any dramatic effect on the performance of your web-crawler.
This being said, you’re just looking at:
$('a').each(function() { console.log($(this).text());});