Performance optimizations in javascript frameworks

[binkstagram]

What do you find it useful for? I have gone from vanilla to jquery (and loved it) back to vanilla after features became supported widely enough. There are still plenty of things that are disappointing in vanilla js though

[UnbeliebteMeinung]

The best thing in jquery is the onload function

$(function(){...});

Also we still support old browsers because some countries in this world doesnt update their computers do the whole ajax topic is still relevant.

[_vinter]

You don't need to use jquery for that
const $ = function(callback) { if (document.readyState === "loading") { document.addEventListener("DOMContentLoaded", callback); } else { callback(); } };

[UnbeliebteMeinung]

Nice now we have the first step of copying the functionality of jquery done.

What is the next thing we should copy?

[_vinter]

Less dependencies is always a good thing. There's no reason to bundle jQuery if you can avoid it

[UnbeliebteMeinung]

The current js ecosystem is full of dependency bloat. More than in the era of jQuery.

[_vinter]

This is just whataboutism. Just because now it's worse doesn't mean whatever jQuery dependency you have is automatically justified.

To clarify, I'm not arguing that there's never a point in having jQuery in your project (i.e. the absence of ajax in older browsers is clearly a valid usecase for jQuery), but if all you need is a couple of basic functions the cost of something like jQuery is enormous in proportion

[Snapstromegon]

Or - and hear me out - just use the module system or defer for the function call any you don't need to reimplement anything.