proposal-change-array-by-copy
Provides additional methods on Array.prototype and TypedArray.prototype to enable changes on the array by returning a new copy of it with the change. (by tc39)
proposal-array-find-from-last
Proposal for Array.prototype.findLast and Array.prototype.findLastIndex. (by Kingwl)
| proposal-change-array-by-copy | proposal-array-find-from-last | |
|---|---|---|
| 14 | 5 | |
| 510 | 112 | |
| - | - | |
| 3.1 | 5.3 | |
| 9 months ago | almost 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-change-array-by-copy
Posts with mentions or reviews of proposal-change-array-by-copy.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-04-16.
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Records and Tupples in JavaScript
The new change array by copy methods (ES2023) will also work with tuples. So while you can't
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JavaScript's New Features: Exploring the Latest Additions to the Language
Change Array by Copy
- ES2023 candidate source code + spec
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[AskJS] Is JavaScript missing some built-in methods?
Stage 3 Change array by copy proposal offers methods like sortTo() that return a new array instead of mutating the original.
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Sorry for the bad quality, can someone please explain how this code arranges the numbers in the array from smallest to biggest ? what does a-b do ?
Note: there's a stage 3 proposal that introduces copy = arr.toSorted().
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Updates from the 94th TC39 meeting
Change Array by Copy: Provides additional methods on Array.prototype and TypedArray.prototype to enable changes on the array by returning a new copy of it with the change.
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New ECMAScript 23 array features
The proposal is described here, with the other methods being:
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Upcoming ECMAScript features I'm excited about
Proposal, Polyfill
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Some functions modify the Array, others do not. Why? Is there a way to "filter" those functions?
You're unlikely to see any new methods being added to JavaScript's Array that would modify an array in place like reverse() and sort() do. In fact some of the new methods that are being added are versions of reverse() and sort() (and splice()) that create copies rather than modifying the originals. Read more about them here: Proposal: Change Array by copy.
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Future Javascript: New Array Methods Coming soon
Since cloning is so common, a new specification has been written which has reached stage 3, which will give us a host of new ways to copy and then change an array. This proposal is called the "Change Array by Copy" proposal. Let's take a look at how it works.
proposal-array-find-from-last
Posts with mentions or reviews of proposal-array-find-from-last.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-04-16.
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JavaScript's New Features: Exploring the Latest Additions to the Language
Array find from last
- ES2023 candidate source code + spec
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Find last occurrence of string in array of arrays
Apparently there is a proposal for .findLast() and .findLastIndex().
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Finding elements in `Array`s and TypedArrays
Proposal page: proposal-array-find-from-last.
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Updates from 80th TC39 meeting
Array find from last: findLast() and findLastIndex() methods on Array.prototype.
What are some alternatives?
When comparing proposal-change-array-by-copy and proposal-array-find-from-last you can also consider the following projects:
proposal-set-methods - Proposal for new Set methods in JS
proposal-intl-locale-info - An API to expose information of locale, such as week data ( first day of a week, weekend start, weekend end), hour cycle, measurement system, commonly used calendar, etc.
proposal-arraybuffer-transfer - Proposal to add ArrayBuffer.prototype.transfer
proposal-regexp-legacy-features - Legacy static properties of the RegExp constructor in JavaScript
proposal-accessible-object-hasownproperty - Object.hasOwn() proposal for ECMAScript
proposal-symbols-as-weakmap-keys - Permit Symbols as keys in WeakMaps, entries in WeakSets and WeakRefs, and registered in FinalizationRegistries
zod - TypeScript-first schema validation with static type inference
proposal-intl-eradisplay - Intl.DateTimeFormat displays era field only if date displayed is in same era as today's
proposal-lazy-import - A proposal for introducing a way to defer evaluate of a module
proposal-iterator-helpers - Methods for working with iterators in ECMAScript
proposal-hashbang - #! for JS
proposal-change-array-by-copy vs proposal-set-methods
proposal-array-find-from-last vs proposal-intl-locale-info
proposal-change-array-by-copy vs proposal-arraybuffer-transfer
proposal-array-find-from-last vs proposal-regexp-legacy-features
proposal-change-array-by-copy vs proposal-accessible-object-hasownproperty
proposal-array-find-from-last vs proposal-symbols-as-weakmap-keys
proposal-change-array-by-copy vs zod
proposal-array-find-from-last vs proposal-intl-eradisplay
proposal-change-array-by-copy vs proposal-symbols-as-weakmap-keys
proposal-array-find-from-last vs proposal-lazy-import
proposal-change-array-by-copy vs proposal-iterator-helpers
proposal-array-find-from-last vs proposal-hashbang