I am trying to replace urls between the href tag but unfortunately i don't know the javascript equivalent of
(?<=href=(\"|'))[^\"']+(?=(\"|'))
Javascript is missing the positive look behind.
Any idea how i can achieve this please ? Thank you !
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1Just have to post when people use reg exp on html stackoverflow.com/questions/1732348/…epascarello– epascarello2017-10-27 14:49:32 +00:00Commented Oct 27, 2017 at 14:49
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If you show a larger context for what you're trying to do, we can perhaps offer better ways to solve this problem than using a regex (such as using the DOM API or an actual HTML parser). This question is kind of like "I'm down this narrow path of a solution to a larger problem and ran into this dead-end. How do I solve this dead-end?" when, in reality, there are probably other ways to solve the problem that don't go down this dead-end. But, without sharing the overall problem you're trying to solve, you've make it so we can't offer our best help.jfriend00– jfriend002017-10-27 15:04:33 +00:00Commented Oct 27, 2017 at 15:04
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2 Answers
It is just an attribute on the anchor element:
function magic(){
var a=document.getElementById("anchor");
a.href="http://www.stackoverflow.com";
}<a href="#" id="anchor">Trallala</a>
<button onclick="magic()">Pushme</button>EDIT: Apparently links are not very welcome in these code snippets, but you can check the change via hovering, and you can also open the link in a new window/tab
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In general, trying to modify HTML with regular expressions is really difficult, dangerous, and hard to maintain. You'll have a much better time using a HTML manipulation library like jQuery:
<a id='myLink' href='http://fish.com'></a>
var $link= $("'#myLink");
$link.attr("href", "http://melons.com');
