tc39/proposal-composites

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Stars: 293
Forks: 10
Open beginner issues: 0
Indexed issues: 26
Avg merge: 3h 16m
Merged PRs (30d): 1

Dominant language: TypeScript
License: MIT
Last GitHub push: Sep 4, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed

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26 open issues indexed

Expose an `isWeakKey` or similar function Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

tc39/proposal-composites#39 · 6 comments · Opened Aug 17, 2026
Our friend `-0` Open

Stage 2.7 requirement

Difficulty 5/5 Over a week Newbie friendliness 25/100

tc39/proposal-composites#36 · 32 comments · 1 reaction · Opened Jul 27, 2026
Naming things is hard, however we do have to do it Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

tc39/proposal-composites#35 · 26 comments · Opened Jul 27, 2026
NaN normalization Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

tc39/proposal-composites#33 · 2 comments · 1 reaction · Opened Jul 25, 2026
[Research] Benchmarking "reactivity patterns" Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

tc39/proposal-composites#31 · 14 comments · 2 reactions · Opened Mar 4, 2026
How are cross-realm comparisons intended to work? Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

tc39/proposal-composites#30 · 11 comments · Opened Nov 10, 2025
Feeback - Syntax and Behaviors Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

tc39/proposal-composites#29 · 4 comments · Opened Oct 12, 2025
[Research] Benchmarking approaches Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

tc39/proposal-composites#27 · 11 comments · 6 reactions · Opened Sep 20, 2025
Equality for closure functions Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

tc39/proposal-composites#21 · 21 comments · Opened Aug 24, 2025
use static Object API Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

tc39/proposal-composites#20 · 4 comments · 1 reaction · Opened May 17, 2025
Usage for (deep) readonly and object freeze Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

tc39/proposal-composites#19 · 1 comment · Opened May 9, 2025
Why this over the previous keyBy idea? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

tc39/proposal-composites#18 · 4 comments · 1 reaction · Opened Apr 28, 2025
Effect of meta-programming (proxy/accessors) Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

tc39/proposal-composites#17 · 2 comments · Opened Apr 21, 2025
Don't understand how the solution aligns to the problem Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

tc39/proposal-composites#16 · 21 comments · 16 reactions · Opened Apr 15, 2025
Should composites be eagerly interned (`===` equal) Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

tc39/proposal-composites#15 · 28 comments · 26 reactions · Opened Apr 15, 2025
Creating a nested Composite Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

tc39/proposal-composites#14 · 1 comment · 2 reactions · Opened Apr 15, 2025
We may still need opaque version Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

tc39/proposal-composites#12 · 3 comments · Opened Apr 14, 2025
Composite(…) vs. new Composite(…) Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

tc39/proposal-composites#11 · 10 comments · 2 reactions · Opened Apr 14, 2025
Composite keys in WeakMaps and WeakSets Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

tc39/proposal-composites#10 · 14 comments · Opened Apr 14, 2025
Which properties of the argument should the Composite be made from? Open

question

Difficulty 5/5 Over a week Newbie friendliness 25/100

tc39/proposal-composites#9 · 5 comments · Opened Apr 14, 2025
Automatic composite coercion of `Composite.equal` arguments Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

tc39/proposal-composites#8 · 6 comments · Opened Apr 12, 2025
Syntax for composite literals: bikeshedding Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

tc39/proposal-composites#7 · 3 comments · 19 reactions · Opened Apr 7, 2025
Prototype as "key" in equality semantics Open

question

Difficulty 5/5 Over a week Newbie friendliness 20/100

tc39/proposal-composites#5 · 13 comments · 3 reactions · Opened Apr 2, 2025
Should there be a way to choose the `[[Prototype]]`? Open

question

Difficulty 5/5 Over a week Newbie friendliness 20/100

tc39/proposal-composites#4 · 8 comments · Opened Apr 1, 2025
How would `Composite(array)` work? Open

question

Difficulty 1/5 Under an hour Newbie friendliness 55/100

tc39/proposal-composites#2 · 6 comments · Opened Apr 1, 2025
Should a composite's keys be sorted? Open

question

Difficulty 5/5 Over a week Newbie friendliness 25/100

tc39/proposal-composites#1 · 25 comments · Opened Apr 1, 2025

tc39/proposal-composites

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