Javascript on traviscj/blog

moar stupid jquery tricks

Tue, 23 Oct 2018 00:00:00 +0000

Sometimes it’s useful to use tampermonkey on a site without nice ids for the elements you want to edit. It turns out it’s still pretty easy!

Take my own website; I have <h2> elements for the headers, but none of them have any ids associated. But as discussed in the jquery selectors post, we can still select by just the tag, with a selector like

$("h2")

This returns a jQuery object, which behaves like an array. If we want to select a particular one – like “Research Interests” – we can try accessing different elements until we get the one we want:

killing all timeouts in js

Wed, 17 Oct 2018 20:43:04 +0000

this article has a nice trick for killing all javascript timeouts:

function stopAllTimeouts() {
    var id = window.setTimeout(null, 0);
    while (id--) {
        window.clearTimeout(id);
    }
}

which can be entered on the javascript console and then run with

stopAllTimeouts()

This is an effective way to prevent javascript timeouts from doing a whole variety of things, like

carousels
endless scrolls
any other kind of animations

jquery selectors

Wed, 17 Oct 2018 03:51:27 +0000

This is silly, but I always forget this:

I also learned you can specify things like

// @require https://code.jquery.com/jquery-2.1.4.min.js

in a Tampermonkey script, even when a given site doesn’t already have jquery.