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
GitHub - tc39/proposal-javascript-standard-library
The goal of this proposal is to define a mechanism for enabling a more extensive standard library in JavaScript than what is available now. Currently it is the case if new properties are added to the language, they are added someplace in the global object. This proposal would not change the behavior of any existing code or add any new syntax, except possibly syntax needed for importing the standar
SmooshGate FAQ | Blog | Chrome for Developers
What the smoosh happened?! A proposal for a JavaScript language feature called Array.prototype.flatten turns out to be Web-incompatible. Shipping the feature in Firefox Nightly caused at least one popular website to break. Given that the problematic code is part of the widespread MooTools library, it’s likely that many more websites are affected. (Although MooTools is not commonly used for new web
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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
GitHub - tc39/dataset: The automatic track tc39 proposals
