proposal-relative-indexing-method
A TC39 proposal to add an .at() method to all the basic indexable classes (Array, String, TypedArray) (by tc39)
proposal-weakrefs
WeakRefs (by tc39)
Our great sponsors
| proposal-relative-indexing-method | proposal-weakrefs | |
|---|---|---|
| 12 | 8 | |
| 337 | 392 | |
| - | - | |
| 4.3 | 2.1 | |
| over 2 years ago | over 2 years ago | |
| HTML | HTML | |
| 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-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
proposal-weakrefs
Posts with mentions or reviews of proposal-weakrefs.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2021-08-08.
- New features in ES2021
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Javascript ES2021 Summary
The WeakRef Proposal has some examples.
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ES2021 Features! 🔥
WeakRefs and FinalizationRegistry Objects
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New ES2021 JavaScript features (now available)
But if you're interested, feel free to read more in the original proposal.
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New JavaScript Features ECMAScript 2021 (with examples)
For that reason, use WeakRef is not recommended and it’s best to avoid implementing one if possible. Unless you’re a JavaScript library maintainer, you will most likely never need to use it. More information WeakRefs TC39 proposal
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Upcoming JavaScript Features in 2021
Weak references (WeakRef and FinalizationRegistry)
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Upcoming Interesting JavaScript ES2021 (ES12) Features to Look for
One important thing about WeakRef and finalizers. The proposal for this feature itself advises not to use them. One reason is that they can be unpredictable. Another one is that they don't really help garbage collection do its job. They can actually make it job harder. You can read more about the reasons in the proposal.
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ES 2021 features (all 5 of them)
Also not shown but a part of the WeakRefs proposal is FinalizationRegistry. Example:
What are some alternatives?
When comparing proposal-relative-indexing-method and proposal-weakrefs you can also consider the following projects:
proposal-temporal - Provides standard objects and functions for working with dates and times.
proposals - Tracking ECMAScript Proposals
proposal-array-last - A JavaScript TC39 Proposal for getting the last element from an array
proposal-regexp-match-indices - ECMAScript RegExp Match Indices
proposal-decimal - Built-in decimal datatype in JavaScript
proposal-promise-any - ECMAScript proposal: Promise.any
proposal-shorthand-improvements - A proposal to introduce new shorthand assignment forms for ECMAScript object literals
proposal-intl-DateTimeFormat-formatRange - ECMA 402 proposal for DateTimeFormat.prototype.{formatRange,formatRangeToParts}
proposal-array-from-async - Draft specification for a proposed Array.fromAsync method in JavaScript.
proposal-bind-operator - This-Binding Syntax for ECMAScript
proposal-partial-application - Proposal to add partial application to ECMAScript
proposal-accessible-object-hasownproperty - Object.hasOwn() proposal for ECMAScript
proposal-relative-indexing-method vs proposal-temporal
proposal-weakrefs vs proposals
proposal-relative-indexing-method vs proposal-array-last
proposal-weakrefs vs proposal-regexp-match-indices
proposal-relative-indexing-method vs proposal-decimal
proposal-weakrefs vs proposal-promise-any
proposal-relative-indexing-method vs proposal-shorthand-improvements
proposal-weakrefs vs proposal-intl-DateTimeFormat-formatRange
proposal-relative-indexing-method vs proposal-array-from-async
proposal-relative-indexing-method vs proposal-bind-operator
proposal-relative-indexing-method vs proposal-partial-application
proposal-relative-indexing-method vs proposal-accessible-object-hasownproperty