Posted in jquery
7
12:03 am, May 8, 2020

find and replace hrefs in existing page links using jquery

sometimes i have to do these things when you cant change the source files for some reason, usually due to old code. Its kind of a patch, but it works. The reason i had to add a delay in running the function is that the links were also loaded in using ajax, so had to wait for them to render before running the replace. Also this may still break if the page is really slow to load, so you can run it at 5ms and 10ms just to make sure it does the replace. if you inspect the links they should all have the link=1 changed to link=3. If you are fast you can see the link change while you mouse over it.

HTML

<h3>The Links</h3>
<div class='link_box'>
<a href='?link=1&something_else=2' class='btn btn-primary'>Some Link 1</a>
<a href='?link=1&something_else=3' class='btn btn-primary'>Some Link 2</a>
<a href='?link=1&something_else=4' class='btn btn-primary'>Some Link 3</a>
</div>

Javascript

function fix_my_links() {
$('.link_box a').each(function() {
		var the_href = $(this).attr('href');
		var new_href = the_href.replace('link=1', 'link=3');
		$(this).attr("href", new_href);
});
}
setTimeout(fix_my_links, 5000);
setTimeout(fix_my_links, 10000);

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This is my test area for webdev. I keep a collection of code snippits here, mostly for my reference. Also if i find a good site, i usually add it here.

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"Olivia, my eldest daughter, caught measles when she was seven years old. As the illness took its usual course I can remember reading to her often in bed and not feeling particularly alarmed about it. Then one morning, when she was well on the road to recovery, I was sitting on her bed showing her how to fashion little animals out of coloured pipe-cleaners, and when it came to her turn to make one herself, I noticed that her fingers and her mind were not working together and she couldn’t do anything. 'Are you feeling all right?' I asked her. 'I feel all sleepy,' she said. In an hour, she was unconscious. In twelve hours she was dead. The measles had turned into a terrible thing called measles encephalitis and there was nothing the doctors could do to save her. That was...in 1962, but even now, if a child with measles happens to develop the same deadly reaction from measles as Olivia did, there would still be nothing the doctors could do to help her. On the other hand, there is today something that parents can do to make sure that this sort of tragedy does not happen to a child of theirs. They can insist that their child is immunised against measles. ...I dedicated two of my books to Olivia, the first was ‘James and the Giant Peach’. That was when she was still alive. The second was ‘The BFG’, dedicated to her memory after she had died from measles. You will see her name at the beginning of each of these books. And I know how happy she would be if only she could know that her death had helped to save a good deal of illness and death among other children."

I just checked google books for BFG, and the dedication is there. 

https://www.google.com.au/books/edition/_/quybcXrFhCIC?hl=en&gbpv=1 


Roald Dahl, 1986