Summary for the 60th meeting of Ecma TC39

• Agenda

• The Code of Conduct Enforcement Committee is being formed. Maggie Pint should lead the work from now on.
• Additions to the meetings agenda now have a defined deadline.

• Pipeline Operator Stage 1
• Extensible Literals Stage 1
• First Class Protocols Stage 1
• Make EcmaScript a syntactic superset of JSON Stage 1
• Partial application to Stage 1
• Nullary Coalescing Operator to Stage 1

• Throw Expressions from Stage 1 to Stage 2
• Private Methods and Accessors from Stage 2 to Stage 3
• import.meta from Stage 2 to Stage 3
• Atomics.waitAsync to Stage 2
• Array.prototype.flatMap and Array.prototype.flatten from Stage 1 to Stage 2
• String.prototype.matchAll to Stage 2
• Intl:
  • Intl.NumberFormat.prototype.formatToParts to Stage 4
  • Intl.PluralRules to Stage 4
  • Intl.Segmenter to Stage 3
  • Intl.Locale to Stage 1

Proposals not advancing to new a new stage. e.g.: development updates, needs work, no consensus, etc).

• Decorators: detailed discussion of proposed semantics, reviewers identified
• Optional Chaining Operator
• Numeric Literal Separator
• Promise.prototype.finally status update
• ArrayBuffer.transfer
• Float16 TypedArrays
• Object Shorthand Improvements not promoted to Stage 1
• Builtins.typeOf() and Builtins.is() not promoted to Stage 1
• Intl.RelativeTimeFormat is proposed for Stage 3; reviewers identified

• #778 Timezone Tweak: Consensus Achieved
• #984 Early errors for RegExp literals: Consensus Achieved
• #988 Iteration protocol change: Consensus Achieved
• #888 Sloppy function hoisting web reality tweak: Consensus Achieved
• #890 Template literal memory leak fix: Achieved consensus for PR
• #1005 export-ns-from Consensus Achieved, needs tests