Updates from 82nd meeting of TC39

This page summarizes the projects mentioned and recommended in the original post on dev.to
Tc39 Tuple JavaScript Record Array

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  • proposal-private-methods

    Discontinued Private methods and getter/setters for ES6 classes

    • Private instance methods and accessors Class Public Instance Fields & Private Instance Fields Static class fields and private static methods

  • proposal-intl-locale-info

    An API to expose information of locale, such as week data ( first day of a week, weekend start, weekend end), hour cycle, measurement system, commonly used calendar, etc.

    • Intl Locale Info API part of ECMA402: A proposal to expose Locale information, such as week data (first day in a week, weekend start day, weekend end day, minimun day in the first week), and text direction hour cycle used in the locale.

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  • proposal-accessible-object-hasownproperty

    Discontinued Object.hasOwn() proposal for ECMAScript

    • Accessible Object.prototype.hasOwnProperty(): Proposal for an Object.hasOwn() method to make Object.prototype.hasOwnProperty() more accessible.

  • proposal-symbols-as-weakmap-keys

    Permit Symbols as keys in WeakMaps, entries in WeakSets and WeakRefs, and registered in FinalizationRegistries

    • Symbols as WeakMap keys: This proposal extends the WeakMap API to allow usage of unique Symbols as keys.

  • proposal-change-array-by-copy

    Discontinued Provides additional methods on Array.prototype and TypedArray.prototype to enable changes on the array by returning a new copy of it with the change.

    • Change Array by copy: Provides additional methods to Array.prototype to enable changes on an array by returning a new copy of it with the change.

  • proposal-pattern-matching

    Pattern matching syntax for ECMAScript

    • The (stage 1) Pattern Matching proposal has been updated, don't miss to read this!

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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