ramda
proposal-iterator-helpers
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ramda | proposal-iterator-helpers | |
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80 | 35 | |
23,567 | 1,224 | |
0.3% | 2.4% | |
6.6 | 5.0 | |
18 days ago | 13 days ago | |
JavaScript | HTML | |
MIT License | - |
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ramda
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Tacit Programming
JavaScript is great for point-free programming! Make sure you check out Ramda.js https://ramdajs.com/
It’s fun in the sense that solving a puzzle is fun, but I avoid it for anything I need to maintain long-term.
But it’s good practice for understanding combinators which is useful for some kinds of problems.
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Pipeline-Oriented Programming [video]
This is very cool. I remember I got sucked into things like Ramda going down this functional programming rabbit hole :-)
https://ramdajs.com/
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Level up your Typescript game, functionally - Part 2
To create our pipeline, I'm going to use the pipe function from the NodeJS ramda library instead of building my own.
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Level up your Typescript game, functionally - Part 3
Other libraries to check out are pratica and ramda
- Ramda: A practical functional library for JavaScript programmers
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FP and JavaScript/TypeScript
I recently took ownership of the new types/ramda repo. This repo is re-exported by @types/ramda and is the first step to bringing type definitions for ramda in-house. We're already hard at work correcting major issues, adding full currying support, and general bug fixes
- [AskJS] Auto-Generated Documentation from JSDoc comments, nice modern themes?
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When to use currying in JavaScript
I'm going to be honest. You probably don't need to use currying in JavaScript. In fact, trying to fit it in your code is going to do more harm than good, unless it's just for fun. Currying only becomes useful when you fully embrace functional programming, which, in JavaScript, means using a library like Ramda instead of the standard built-in functions.
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No Lodash
Lodash gets so many things wrong I’d rather not see it in most projects. I appreciate a good utility library for JS projects but my go-to choice has to be Ramda[1]. Every function it exports is curried and works great with pipe which enables me to write highly reusable and composable functions in pointfree notation. I have never been as productive with lodash, and I find the functional style easier to read
[1] https://ramdajs.com/
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Snap.js - A competitor to Lodash
Do note though that ramda is different from rambda. 👍 (Granted they are very similar!)
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:
What are some alternatives?
lodash - A modern JavaScript utility library delivering modularity, performance, & extras.
proposal-function-helpers - A withdrawn proposal for standardizing some useful, popular helper functions into JavaScript’s Function object.
RxJS
IxJS - The Interactive Extensions for JavaScript
Rambda - Faster and smaller alternative to Ramda
proposal-hack-pipes - Draft specification for Hack pipes in JavaScript.
immutable-js - Immutable persistent data collections for Javascript which increase efficiency and simplicity.
proposal-hack-pipes - Draft specification for Hack pipes in JavaScript. [Moved to: https://github.com/tc39/proposal-hack-pipes]
fp-ts - Functional programming in TypeScript
EventSource - a polyfill for http://www.w3.org/TR/eventsource/
lazy.js - Like Underscore, but lazier
zod - TypeScript-first schema validation with static type inference