tc39/proposal-decorators

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Decorators for ES6 classes

Stars: 3k
Forks: 117
Open beginner issues: 0
Indexed issues: 48

Dominant language: No language data
License: No license data
Last GitHub push: Jun 23, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted
PR merge metrics: No merged PRs in 30d

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48 open issues indexed

Suggestion: Allow function names starting with @ Open

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

tc39/proposal-decorators#577 · 2 comments · 3 reactions · Opened May 7, 2026
Execution order of initializers and constructors in the class hierarchy Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

tc39/proposal-decorators#575 · 1 comment · Opened Jan 14, 2026
Proposal 2, for The Decorator Ordering Problem Open

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

tc39/proposal-decorators#574 · 1 comment · 2 reactions · Opened Dec 31, 2025
`in`/`access.has()` for `accessor` elements before/during initialization Open

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

tc39/proposal-decorators#573 · 1 comment · Opened Dec 16, 2025
Spec bug: ClassFieldDefinitionEvaluation Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

tc39/proposal-decorators#572 · Opened Dec 14, 2025
Yet another unexpected initializer ordering causes TDZ errors Open

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

tc39/proposal-decorators#571 · 29 comments · Opened Dec 11, 2025
Spec bug: Initializer order Open

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

tc39/proposal-decorators#569 · Opened Dec 3, 2025
Spec bug: MakeAutoAccessorGetter calls MakeMethod with invalid argument. Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

tc39/proposal-decorators#568 · Opened Dec 2, 2025
Potential TDZ accessing static methods from instance decorators. Open

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

tc39/proposal-decorators#567 · 8 comments · Opened Nov 23, 2025
decorators run in unexpected order Open

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

tc39/proposal-decorators#566 · 3 comments · Opened Nov 22, 2025
I wish "context initializers" ran in definition order. Open

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

tc39/proposal-decorators#565 · 28 comments · Opened Nov 22, 2025
ability to patch/observe initializers Open

Difficulty 5/5 Over a week Newbie friendliness 28/100

tc39/proposal-decorators#564 · 6 comments · Opened Nov 21, 2025
Decorated classes do not have to be constructors? Open

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

tc39/proposal-decorators#562 · 3 comments · Opened Aug 14, 2025
Preserving Class and Method Prototype in JavaScript Decorators Open

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

tc39/proposal-decorators#561 · 6 comments · Opened Aug 5, 2025
Advanced Decorator Context Design: SOLID Single Responsibility Principle Optimization Open

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

tc39/proposal-decorators#560 · 3 comments · Opened Aug 1, 2025
add a way for class decorator to addInitializer to instance Open

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

tc39/proposal-decorators#554 · 1 comment · Opened Mar 29, 2025
Vote for variable decorators! Open

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

tc39/proposal-decorators#552 · 1 comment · 28 reactions · Opened Jan 24, 2025
discrepancy: we're allowed to get/set private fields, but not public fields, and public auto accessors are not fields. Open

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

tc39/proposal-decorators#550 · 2 comments · 4 reactions · Opened Oct 17, 2024
confusing that extra initializers for auto accessors and regular accessors do not both run after storage initializers. Open

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

tc39/proposal-decorators#548 · 1 comment · Opened Oct 17, 2024
overriding auto accessor `init` can be confusing for *composed* decorators Open

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

tc39/proposal-decorators#547 · 2 comments · Opened Oct 16, 2024
Error in example Open

Difficulty 1/5 Under an hour Newbie friendliness 50/100

tc39/proposal-decorators#539 · 1 reaction · Opened Aug 7, 2024
Clarification on field vs. method destination Open

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

tc39/proposal-decorators#529 · 8 comments · 2 reactions · Opened May 5, 2024
Write upgrade guide for previous iterations to Stage 3 Open

documentation needed help wanted

Difficulty 4/5 3-5 days Newbie friendliness 35/100

tc39/proposal-decorators#526 · Opened Feb 2, 2024
Was there a purpose for non-lexical ordering of decorator applications? Open

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

tc39/proposal-decorators#524 · 2 comments · Opened Feb 2, 2024
feature request (separate proposal?): `context.addPostConstructInitializer()` Open

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

tc39/proposal-decorators#521 · 18 comments · 4 reactions · Opened Dec 21, 2023
Add target class to the context Open

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

tc39/proposal-decorators#517 · 12 comments · 2 reactions · Opened Nov 12, 2023
Idea: syntax for decorator composition. Open

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

tc39/proposal-decorators#515 · 3 comments · 2 reactions · Opened Oct 2, 2023
Can't dynamically set private field in initializer Open

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

tc39/proposal-decorators#509 · 31 comments · Opened Jun 4, 2023
Timeline / proposal for extensions? Open

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

tc39/proposal-decorators#506 · 9 comments · 4 reactions · Opened Apr 10, 2023
Dangling decorationState.[[Finished]] when throwing Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

tc39/proposal-decorators#500 · 9 comments · 2 reactions · Opened Mar 7, 2023
How to transform legacy decorator to current decorator specification? Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

tc39/proposal-decorators#496 · 2 reactions · Opened Jan 31, 2023
Implementation Status Open

status

Difficulty 3/5 1-2 days Newbie friendliness 45/100

tc39/proposal-decorators#476 · 62 comments · 43 reactions · Opened Jul 20, 2022
Suggestion: Provide additional context about the class to member decorators Open

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

tc39/proposal-decorators#466 · 8 comments · 33 reactions · Opened Apr 12, 2022
Suggestion: Allow member decorators to add both static and instance *extra* initializers. Open

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

tc39/proposal-decorators#465 · 7 comments · 6 reactions · Opened Apr 12, 2022
Should we allow MetaProperty in DecoratorMemberExpression? Open

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

tc39/proposal-decorators#462 · 1 comment · Opened Mar 30, 2022
Should @super.dec be allowed? Open

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

tc39/proposal-decorators#461 · 21 comments · Opened Mar 30, 2022
Should @this.dec be allowed? Open

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

tc39/proposal-decorators#460 · 1 comment · 1 reaction · Opened Mar 30, 2022
GNOME's use case for decorators Open

info

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

tc39/proposal-decorators#441 · 4 comments · 6 reactions · Opened Feb 2, 2022
Prohibiting whitespace after `@` Open

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

tc39/proposal-decorators#430 · 16 comments · 12 reactions · Opened Aug 31, 2021
[Feature Request] allow decorate for ALL javascript entities Open

follow-on proposal

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

tc39/proposal-decorators#306 · 15 comments · 95 reactions · Opened Apr 26, 2020
Decorator cookbook Open

info

Difficulty 4/5 3-5 days Newbie friendliness 35/100

tc39/proposal-decorators#231 · 60 comments · 15 reactions · Opened Jan 22, 2019
Are decorators strict mode code? Open

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

tc39/proposal-decorators#204 · 38 comments · Opened Jan 12, 2019
What would it mean to "decorate an export"? Open

follow-on proposal

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

tc39/proposal-decorators#135 · 37 comments · 5 reactions · Opened Aug 2, 2018
Decorator standard library Open

follow-on proposal

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

tc39/proposal-decorators#54 · 13 comments · Opened Feb 11, 2018
Decorators for assignment expressions? const/let declarations? Open

follow-on proposal

Difficulty 5/5 Over a week Newbie friendliness 15/100

tc39/proposal-decorators#51 · 5 comments · 2 reactions · Opened Feb 10, 2018
Inline decorator syntax Open

follow-on proposal

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

tc39/proposal-decorators#49 · 4 comments · 1 reaction · Opened Feb 10, 2018
Constructor decorators Open

follow-on proposal

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

tc39/proposal-decorators#48 · 6 comments · Opened Feb 10, 2018
Parameter decorators Open

follow-on proposal

Difficulty 5/5 Over a week Newbie friendliness 15/100

tc39/proposal-decorators#47 · 22 comments · 19 reactions · Opened Feb 10, 2018

tc39/proposal-decorators

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