pocl VS caniuse

https://github.com/avodonosov/pocl

The unused javascript code can be removed (and loaded on demand). Although I am not sure how valuable that would be for the world. It only saves network traffic, parsing time and some browser memory for compiled code. But js traffic in the Internet is neglidgible comparing to, say, video and images. Will the user experience be signifiqanty better if browser is the saved from the unnesessary js parsing? I don't know of a good way to measure that.

> for such a small piece of work

Don't take the example too literally, some functions calls can be here.

Running computations in parallel is often valuable. Or run computations in parallel with waiting for external resource - why does not the code in the article compute something while waiting for a, b and c?

Anyways, if async functions are so good, why not have all functions async?

The article says this a kind of "documentation" that tells you what functions can wait for some external data and what functions are "pure computation". If it was so, it would be OK. Such a documentation could be computed automatically based on the called function implementations and developer is hinted: "these two functions you call are both async, consider waiting for both in parallel". In reality, the async / await implementations prevent the non-async functions from becoming async without code change and rebuild. This restriction is just a limitation of how async / await is implemented, not something useful.

As other commenter says, the article "embraces a defect introduced for BC reasons as if it's sound engineering. It really isn't."

When my code is called by a 3rd party library, I can not change my code to async. That's the most unpleasant property of today's async / await. What yesterday was quick computation tomorrow can become a network call. For example, I may want to bodies of rarely used functions to only load when called first time (https://github.com/avodonosov/pocl).

The article suggest we have to decide upfront, at the top-level of the application / call stack, which parts can be implemented with as waiting blocks and which should never wait for anything external. This is not practical.

> It's almost always faster to do them in parallel if possible.

Can I X, is a question about the readiness/compliance of a certain thing at time = now. Can I use CSS version X was the iconic early meme.

https://caniuse.com/?search=css3

For a generalized example, if you wanted to know if the basketball courts were ready for you to “ball it up” in a certain city, it’d be caniball.com

If you want to know if you can use a certain frontend technology, the idea is like: canwefigma?

It’s a glorified feature matrix, and usually a project of a passionate community. I approve, even if some of the memes are a bit dank.

https://caniuse.com/ is a popular tool to check what web features are working across different browsers - "can you use this and assume that it will work for others".

The article uses custom css @properties which are awesome and have 88% browser support [1].

One thing to watch out for is differences in how browsers handle setting the fallback initial-value. Chrome will use initial-value if CSS variable is undefined OR set to an invalid value. Firefox will only use initial-value if the variable is undefined. For most projects, this won't be an issue, but for a recent project, I ended up needing to use javascript to set default values in Firefox to iron out the inconsistency between browser implementations.

[1] https://caniuse.com/?search=%40property

Safari is the only browser that doesn't support extending HTML element

https://caniuse.com/?search=Custom%20Elements

You forgot to mention (Web)Workers. This is explicit creation, management, and communication with additional threads within JavaScript. What's more, they've been around in JavaScript longer than the V8 engine has even existed!

https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers...

https://caniuse.com/?search=webworkers

Do you happen to know where can I check out the cutoff version for each browser? https://caniuse.com/?search=wasm doesn't have it (or other things like WasmGC for that matter)

(https://caniuse.com/) A handy tool for checking the browser compatibility of HTML, CSS, and JavaScript features. Can I Use provides up-to-date support tables for various web technologies across different browsers.

Caniuse