proposal-regexp-match-indices
ECMAScript RegExp Match Indices (by tc39)
proposal-relative-indexing-method
A TC39 proposal to add an .at() method to all the basic indexable classes (Array, String, TypedArray) (by tc39)
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| proposal-regexp-match-indices | proposal-relative-indexing-method | |
|---|---|---|
| 4 | 12 | |
| 58 | 337 | |
| - | - | |
| 1.0 | 4.3 | |
| almost 2 years ago | over 2 years ago | |
| HTML | HTML | |
| BSD 3-clause "New" or "Revised" License | MIT License |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
proposal-regexp-match-indices
Posts with mentions or reviews of proposal-regexp-match-indices.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-01-12.
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Unveiling Breakthroughs Found In The State Of JS 2022 Survey
For more info about this feature, you can refer to the official proposal repo.
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How JavaScript works: regular expressions (RegExp)
It should be mentioned that this feature isn't part of the ECMAScript specification yet. It's currently a stage 3 proposal and will likely be part of ES2021 or ES2022.
- Node.js 16 Available Now
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ES 2021 features (all 5 of them)
RegExp Match Indices (?)
proposal-relative-indexing-method
Posts with mentions or reviews of proposal-relative-indexing-method.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2021-09-17.
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Stop using Array[index], use Array.at() instead
If you want to learn more, check out the MDN reference for it. You can also read the original proposal for it.
- ECMAScript 2022 introduces at() method in Array, String, TypedArray
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Learning the new `at()` function, at #jslang
Just like every other array method, it’s type coerced. It’s a problem with all built ins, best not fracture this more in JS without a very good reason. https://github.com/tc39/proposal-relative-indexing-method/issues/40
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10+ Interesting ECMAScript Proposals
.at()
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Updates from the 85th meeting of TC39
.at() .at() method on all the built-in indexables.
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Javascript ES2021 Summary
For a proposal to be finalized, it needs "Two compatible implementations which pass the acceptance tests" (source). This can mean browsers but also includes transpilers like babel. Chrome - which also includes other browsers now like Edge and Opera - will often release stage 3 features publicly before finalized, and Firefox isn't usually far behind, or sometimes even first, as was the case with the currently stage 3 at() method for arrays. Safari is probably the one you have to worry about the most. They tend to be further behind, I think mostly due to their release cadence being longer. Safari, for example, doesn't yet support private methods whereas the other browsers have supported them for some time now. While private methods are stage 4, they are expected to be part of ES2022 which hasn't been published yet - the current being ES2021.
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Can I use .length -1 to call a string value?
Soon we’ll get this nicer version (proposal):
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Stage 3 Proposal: Array.prototype.at
Proposal hosted on GitHub explains the reasoning behind it https://github.com/tc39/proposal-relative-indexing-method
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Array Indexing Method
https://github.com/tc39/proposal-relative-indexing-method#rationale
What are some alternatives?
When comparing proposal-regexp-match-indices and proposal-relative-indexing-method you can also consider the following projects:
iswasmfast - Performance comparison of WebAssembly, C++ Addon, and native implementations of various algorithms in Node.js.
proposal-temporal - Provides standard objects and functions for working with dates and times.