I have questions

Spec Reading Unsure how to read the Ecma262 spec? Ask here. Delegates AMA What's it like to be a delegate? How does one become a delegate? What's it like to champion a proposal? Ask your friendly questions of the delegates here!

Topic	Replies	Views	Activity
About the I have questions category I have questions	0	863	May 3, 2019
Arrays without prototypes: impossible to construct performantly? I have questions	3	23	March 7, 2026
Synchronous Stream Support I have questions	2	38	March 7, 2026
Confused about this .then/.finally error handling example I have questions	2	62	February 6, 2026
What happens if I write a parser that treats all non-ascii characters as being valid in identifiers? I have questions	5	113	December 17, 2025
Aligning token semantics across Web Locks, TC39 Mutex, and Concurrency Control proposals I have questions	1	81	November 27, 2025
Reflect.set(...args, receiver) throwing for no reason I have questions	7	150	November 10, 2025
Addition of power / energy units to Intl.NumberFormat I have questions	1	477	October 24, 2025
ReturnIfAbrupt Macro I have questions	4	99	October 13, 2025
WASM Opaque objects VS `for...in` I have questions	26	283	October 9, 2025
Include heap data structure I have questions proposal	3	123	October 9, 2025
Number.isNaN and redundant check for Number type? Spec Reading	8	133	September 25, 2025
TypedArray.subarray byteOffset with detached buffers I have questions proposal	8	185	September 3, 2025
sugar for enum I have questions	10	162	July 17, 2025
Question about trailing comma handling in Arguments vs ImportCall I have questions	2	76	July 6, 2025
How to know the latest test262 commit that corresponds to ecma262’s main? I have questions	4	78	June 5, 2025
How exactly work engine that throws "Unhandled rejection in promise" ? I have questions temporal	2	96	May 11, 2025
How to create a proposal? I have questions proposal	2	359	November 3, 2022
RSS feed of approved features I have questions proposal	3	82	April 16, 2025
Do we have other granular levels for visibility? I have questions	14	191	March 2, 2025
Is it possible to remove function declaration for one-function-export-per-file? I have questions proposal	28	439	February 19, 2025
This forum doesn't allow to add new features, right? I have questions	8	173	February 11, 2025
What should I do to propose a new feature in JS I have questions	3	93	January 6, 2025
Is Object.groupBy() output inconsistent and slow? I have questions	1	68	December 11, 2024
Will for-of array.entries() ever be anywhere near as fast as plain for loop? I have questions	7	102	December 1, 2024
Question: Add RegExp as `case` statement in `switch` I have questions	5	89	November 14, 2024
Where to ask about a feature of JS API? I have questions	3	85	November 6, 2024
How to create a proxy function for function call chaining in javascript? I have questions proxy	0	47	November 3, 2024
Symbol.disposeAsync - what is the use case? I have questions proposal	2	94	October 29, 2024
[quesion-finished] Strange PerformanceObserver API Judgment of LCP Elements I have questions	1	49	October 16, 2024