proposal-array-grouping
proposal-function-pipe-flow
| proposal-array-grouping | proposal-function-pipe-flow | |
|---|---|---|
| 19 | 5 | |
| 513 | 51 | |
| - | - | |
| 0.0 | 6.5 | |
| 6 months ago | over 1 year ago | |
| HTML | HTML | |
| MIT License | BSD 3-clause "New" or "Revised" License |
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proposal-array-grouping
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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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What's New in Node.js 21
Array grouping to combine like data into groups using Object.groupBy() and Map.groupBy().
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Updates from the 97th TC39 meeting
Array Grouping: A proposal to make grouping of array items easier.
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Snap.js - A competitor to Lodash
They are coming out with array.group() soon, which is supposed to also fulfil the use-case of partitioning :) - https://github.com/tc39/proposal-array-grouping.
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[AskJS] Is JavaScript missing some built-in methods?
https://github.com/tc39/proposal-array-grouping for those curious
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Set methods proposal reaches stage 3
I'm also looking forward to map.emplace() and arr.group() and iterator helpers.
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SmooshGate
At the end of the day, it comes down to whether browser vendors are willing to ship the feature even though it breaks said websites, and they do have visitor data to back those decisions. If the rule was "never break any website ever", you'd be able to block proposals you don't personally like by crafting a website that "gets broken" by that proposal.
At least in the array grouping proposal, they did evaluate amount and popularity of possibly breaking sites, before eventually renaming the method from .groupBy to .group
https://github.com/tc39/proposal-array-grouping/issues/37
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New ECMAScript 23 array features
The proposal is described here.
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how can I split an array into multiple arrays based on a property?
Remarkably, this is now a TC39 proposal.
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Upcoming ECMAScript features I'm excited about
Proposal, Polyfill
proposal-function-pipe-flow
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Announcing TypeScript 4.8
If I'm understanding the proposals correctly, the proposal for Function.pipe and Function.flow was rejected, but the pipeline operator is still working its way through the process. (Part of the rationale for rejecting Function.pipe and Function.flow was the perception that users would be more interested in a pipeline operator, at least to start.)
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how can I split an array into multiple arrays based on a property?
I say "remarkably" because I'm slightly bitter that this proposal was rejected, at least in small part, because of the simplicity of recreating the essentially functionality in user-land with a one-liner.
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Proposal withdrawn for Function.pipe / flow
With thanks to J.S. Choi for his work in championing it, but the Function.pipe/flow (+compose) proposal has been rejected for Stage 1 by the TC39 Committee:
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Taking a Look at the New Pipe Operator in JavaScript
It’s a set of functional pipe utilities and will hopefully be presented next week to the committee by J.S. Choi: https://github.com/js-choi/proposal-function-pipe-flow
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Future Javascript: Pipeline Operators
There's now a separate proposal for an stdlib Function.pipe.
What are some alternatives?
es1995 - ES1995 – The Missing JS Polyfill
notes - TC39 meeting notes
retro-random-number
proposal-pipeline-operator - A proposal for adding a useful pipe operator to JavaScript.
proposal-regexp-r-escape - Regular Expression `\R` Escape for ECMAScript
FiraCode - Free monospaced font with programming ligatures
proposal-string-cooked - ECMAScript proposal for String.cooked built-in template tag
proposal-pattern-matching - Pattern matching syntax for ECMAScript
proposal-array-from-async - Draft specification for a proposed Array.fromAsync method in JavaScript.
proposal-iterator-helpers - Methods for working with iterators in ECMAScript
proposals - ✍️ Tracking the status of Babel's implementation of TC39 proposals (may be out of date)
just - A library of dependency-free JavaScript utilities that do just one thing.