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Proposal-iterator-helpers Alternatives
Similar projects and alternatives to proposal-iterator-helpers
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Discontinued ECMAScript proposal for the Record and Tuple value types. | Stage 2: it will change!
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proposals
✍️ Tracking the status of Babel's implementation of TC39 proposals (may be out of date) (by babel)
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proposal-change-array-by-copy
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SaaSHub
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NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a better proposal-iterator-helpers alternative or higher similarity.
proposal-iterator-helpers discussion
proposal-iterator-helpers reviews and mentions
Posts with mentions or reviews of proposal-iterator-helpers.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2025-01-30.
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A comprehensive guide to JavaScript generators
However, this limitation won’t last forever. With Iteration Helpers proposed for the next version of ECMAScript (currently Stage 4), you’ll eventually be able to do things like limiting or transforming generator output natively — similar to what RxJS already does for observables.
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Cash: A small jQuery alternative for modern browsers
The versions of those methods that support any iterator (including upgrading NodeList "for free") have passed Stage 4 of the process, which means they will be in the next version of the standard and already starting to show up in some browsers.
https://github.com/tc39/proposal-iterator-helpers
- TC39 Proposal: Iterator Helpers
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Updates from the 104th TC39 meeting
Sync Iterator Helpers: Extends iterators with helper methods to improve their usability in synchronous contexts.
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I was wrong about array methods and generators...
In fact, the developer experience around iteration utilities is so great that there is an active Stage 3 ECMAScript proposal right now (as of writing) that aims to officially add lazy iterator helpers to the language. When this is more widely supported, expect a follow-up article to this one that investigates the would-be C++-backed helpers.
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JavaScript weakmaps should be iterable
Many of these are at stage 3 of the standardization process and have a good chance of shipping soon: https://github.com/tc39/proposal-iterator-helpers
(They're not on objects, which I think is probably for the best; every method on Object.prototype is a shadowing risk and so we're unlikely to see any besides the ones that already exist. You can always use Object.entries; if your object has so many dynamically-computed properties that eagerly collecting them is a performance concern, then it should probably be a Map.)
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More Itertools
Shout out to JavaScript massively delaying https://github.com/tc39/proposal-async-iterator-helpers in the 23rd hour.
The proposal seemed very close to getting shipped alongside https://github.com/tc39/proposal-iterator-helpers while basically accepting many of the constraints of current async iteration (one at a time consumption). But the folks really accepted that concurrency needs had evolved, decided to hold back & keep iterating & churning for better.
I feel like a lot of the easy visible mood on the web (against the web) is that there's too much, that stuff is just piled in. But I see a lot of caring & deliberation & trying to get shit right & good. Sometimes that too can be maddening, but ultimately with the web there aren't really re-do-es & the deliberation is good.
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What's New in Node.js 22
Support for new JavaScript features, including Array.fromAsync(), Set methods, and 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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A note from our sponsor - InfluxDB
www.influxdata.com | 19 Jul 2025
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The primary programming language of proposal-iterator-helpers is HTML.
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