GitHub - tc39/proposal-error-frames-above: ECMAScript Proposal: Error option `framesAbove`
This proposal introduces a new Error options property, framesAbove, that allows authors to exclude specific leading stack frames when an error's stack trace is captured. framesAbove receives a method (i.e., a callable function). If the provided value is neither a method nor undefined, the constructor throws a TypeError. When the stack trace for the error is collected, all frames above the topmost
ECMAScript proposal updates @ 2025-04
The changes of proposal’s status @ 107th meeting of Ecma TC39 ECMA-262 New Proposals Proposal Stage Compare Strings by Codepoint 1 Non-extensible Applies to Private 2.7 Disposable AsyncContext.Variable 1 Deferred Re-exports 2 Composites 1 Enums 1 Object.propertyCount 1 Updated Proposals Proposal From To Record & Tuple 2 withdrawn ECMA-402 New Proposals No Data Updated Proposals No Data This diff i
ECMAScript proposal updates @ 2024-10
The changes of proposal’s status @ 104th meeting of Ecma TC39 ECMA-262 New Proposals Proposal Stage Immutable ArrayBuffers 1 Array.zip and Array.zipKeyed 1 Updated Proposals Proposal From To Promise.try 3 4 Import Attributes 3 4 RegExp Modifiers 3 4 Sync Iterator helpers 3 4 JSON Modules 3 4 Atomics.pause 2.7 3 Error.isError 2 2.7 Iterator Sequencing 2 2.7 Extractors 1 2 Structs: Fixed Layout Obje
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ECMAScript proposal updates @ 2026-03
TC39 Advances Temporal to Stage 4 Alongside Several ECMAScri...
Temporal to stage 4, per 2026.03.11 TC39 · tc39/proposals@f915929
Upsert to stage 4, per 2026.01.20 TC39 · tc39/proposals@131e53d
GitHub - tc39/proposal-iterator-chunking: a proposal to add a method to iterators for producing an iterator of its subsequences
GitHub - tc39/proposal-inspector: ECMAScript Proposal, specs, and reference implementation for Inspector
GitHub - tc39/proposal-composites
Proposal is withdrawn · Issue #394 · tc39/proposal-record-tuple
GitHub - tc39/proposal-object-property-count: TC39 proposal for Object.propertyCount(target[, options])
GitHub - tc39/proposal-deferred-reexports
GitHub - tc39/proposal-compare-strings-by-codepoint: A new method to compare strings by Unicode codepoint
proposal-async-context/FRAMEWORKS.md at master · tc39/proposal-async-context
GitHub - tc39/proposal-oom-fails-fast: Proposal: Out of memory immediately terminates agent cluster
GitHub - tc39/proposal-thenable-curtailment: A proposal to curtail the power of "thenable" objects.
GitHub - tc39/proposal-regexp-modifiers: Regular Expression Pattern Modifiers for ECMAScript
ECMAScript proposal updates @ 2024-06
Normative: allow duplicate named capture groups by bakkot · Pull Request #2721 · tc39/ecma262