proposal-iterator-helpers
IxJS
| proposal-iterator-helpers | IxJS | |
|---|---|---|
| 35 | 7 | |
| 1,242 | 1,295 | |
| 2.6% | 0.3% | |
| 5.0 | 5.9 | |
| 23 days ago | 4 months ago | |
| HTML | TypeScript | |
| - | MIT License |
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proposal-iterator-helpers
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TC39: Add Object.groupBy and Map.groupBy
Global iterator type is coming: https://github.com/tc39/proposal-iterator-helpers
But a method named `groupBy` on iterators traditionally means a different thing: https://github.com/tc39/proposal-array-grouping/issues/51#is...
Global iterable type it's too late for, since there's many extant iterables in the language and on the web which don't have it in their prototype chain and can't reasonably be changed.
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Lodash just declared issue bankruptcy and closed every issue and open PR
Very much agreed. The amount of mileage we get from using Spread (literally the ...) alone has been amazing. https://developer.mozilla.org/en-US/docs/Web/JavaScript/Refe... Iteration helpers is shipping soon, that'll be a huge help (async iteration helpers will be delayed for a while). https://github.com/tc39/proposal-iterator-helpers .
In the olden days, I feel like the codebases I worked on needed to use .apply() multiple times a week, to figure out some creative way of invoking functions. https://developer.mozilla.org/en-US/docs/Web/JavaScript/Refe... That's all gone now; I'd take even odds that 50% of my team knows .call and .apply.
Chrome 117 is shipping Object.groupBy() and that's gonna be a huge help in eliminating a lot of the last places we end up using lodash. https://developer.mozilla.org/en-US/docs/Web/JavaScript/Refe...
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It’s 2023. Start using JavaScript Map and Set
Once this https://github.com/tc39/proposal-iterator-helpers reaches browsers, I'm prob gonna be exclusively using Maps.
- Why I Like Using Maps (and WeakMaps) for Handling DOM Nodes
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Updates from the 95th TC39 meeting
No, probably not. But with iterator helpers, you can do
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All JavaScript and TypeScript features of the last 3 years explained
> focus more on improving the terrible JS web API
That's W3C’s job, not ECMA’s.
> Where are all the containers?
?
> Sorted sets/maps?
Sets and Maps are sorted (by insertion order)
> Why can't I even map an iterator?
It's coming, but someone will likely be exhausted by that addition. https://github.com/tc39/proposal-iterator-helpers
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Uncle Bob and Casey Muratori Discuss Clean Code
Upcoming: https://github.com/tc39/proposal-iterator-helpers
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[AskJS] Is JavaScript missing some built-in methods?
Not Generators, but Iterators have a Stage 3 proposal with helpers like these.
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Just fighting URLSearchParams and wonder if anyone uses iterators IRL and what I do miss
I guess you are not the only one dealing with this. That’s why there is this proposal https://github.com/tc39/proposal-iterator-helpers So hopefully it will get easier soon. But in most cases you can simply wrap it in Array.from or you can also clone with the spread operator.
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Iterator/Generator Exercises?
Let's assume Number.range(), iterator helpers and some isPrime() function. From that we could easily create the following:
IxJS
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Why Would Anyone Need JavaScript Generator Functions?
Easily done with Ix:
https://github.com/ReactiveX/IxJS/blob/master/docs/asynciter...
- A generically typed pipe function in TypeScript
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LINQ, Java Stream API like library for Javascript / Typescript
So this is just IxJS?
- The triple dot syntax (` `) in JavaScript: rest vs. spread
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[AskJS] Is There Some Way to Lazy Evaluate Arrays in JavaScript?
There's also IxJS, which is basically RxJS but for arrays.
What are some alternatives?
proposal-function-helpers - A withdrawn proposal for standardizing some useful, popular helper functions into JavaScript’s Function object.
FxTS - A functional programming library for TypeScript/JavaScript
proposal-hack-pipes - Draft specification for Hack pipes in JavaScript.
linqjs - Minimalist implementation of LINQ-style extension methods for JavaScript
proposal-hack-pipes - Draft specification for Hack pipes in JavaScript. [Moved to: https://github.com/tc39/proposal-hack-pipes]
fromable - A Swiss Army Knife for working with JavaScript iterables.
EventSource - a polyfill for http://www.w3.org/TR/eventsource/
froebel - A strictly typed utility library.
mpr.kirke.dev
zod - TypeScript-first schema validation with static type inference
iter-ops - Basic operations on iterables