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Agenda for the 76th meeting of Ecma TC39

  • Host: Paypal
  • Dates: June 1 - 4, 2020
  • Times:
    • 10:00 to 15:00 CDT (UTC -5) on June 1st, 2020
    • 10:00 to 15:00 CDT (UTC -5) on June 2nd, 2020
    • 10:00 to 15:00 CDT (UTC -5) on June 3rd, 2020
    • 10:00 to 15:00 CDT (UTC -5) on June 4th, 2020
  • Location: Remote (was Chicago)
  • Attendee information: https://github.com/tc39/Reflector/issues/279

Allen's paper on standards committee participation for new attendees: http://wirfs-brock.com/allen/files/papers/standpats-asianplop2016.pdf

Agenda topic rules

Deadline for advancement eligibility: May 23rd, 2020, 10:00 CT

  • Note: this time is selected to be precisely 10 days prior to the start of the meeting
  1. Proposals not looking to advance may be added at any time; if after the deadline, please always use a pull request so that members are notified of changes.
  2. Proposals seeking feedback at stage 0 must be added (and noted as such) prior to the deadline, or else delegates may object to advancement solely on the basis of missing the deadline.
    1. Such proposals should include supporting materials when possible.
  3. Proposals looking to advance to stage 1 must be added (and noted as such) prior to the deadline, or else delegates may object to advancement solely on the basis of missing the deadline.
    1. Such proposals must link to a proposal repository and they should link to supporting materials when possible.
  4. Proposals looking to advance to stages 2, 3, or 4 must be added (and noted as such) along with the necessary materials prior to the deadline, or else delegates may object to advancement solely on the basis of missing the deadline.
    1. Such proposals must link to supporting materials prior to the deadline, or else delegates may object to advancement solely on the basis of missing the deadline. If these materials change substantially after the deadline, the proposal may be disqualified from advancement, based on the committee’s judgment.
    2. Proposals looking to advance to stage 4 must link to a pull request into the spec, since the process requires one.
  5. Proposal-based agenda items should be sorted primarily by stage (descending), secondarily by timebox (ascending), and finally by insertion date.

Supporting materials includes slides, a link to the proposal repository, a link to spec text, etc.; essentially, anything you are planning to present to the committee, or that would be useful for delegates to review.

Agenda items

  1. Opening, welcome and roll call (Chair)

    1. Opening of the meeting
    2. TC39 follows its Code of Conduct
    3. Introduction of attendees
    4. Host facilities, local logistics
    5. Quick recap of meeting IPR policy
    6. Overview of communication tools

  2. Find volunteers for note taking

  3. Adoption of the agenda

  4. Approval of the minutes from last meeting

  5. Next meeting host and logistics annoucement (slides) (5m, Chair)

  6. Secretary's Report (slides) (15m, Istvan Sebestyen)

  7. Project Editors’ Reports

    1. ECMA262 Status Updates (slides) (15m)
    2. ECMA402 Status Updates (15m) (slides)
    3. ECMA404 Status Updates (15m)
    4. Test262 Status Updates (15m)

  8. Updates from the CoC Committee (15m)

  9. Web compatibility issues / Needs Consensus PRs

    ✓ timebox topic presenter
    ✓ 5m Promise.{all,allSettled,race} should check "resolve" before iterating Keith Miller

  10. Overflow from previous meeting

    ✓ timebox topic presenter

  11. Incubation call chartering (15m on the last day)

  12. Short (≤30m) Timeboxed Discussions

    ✓ timebox topic presenter
    ✓ 30m Unicode support (see discussion) (slides) Michael Ficarra

  13. Proposals

    ✓ represents an agenda item which has been presented, and does not indicate stage advancement

    ✓ stage timebox topic presenter
    ✓ 3 15m String.prototype.replaceAll for Stage 4 (slides) Mathias Bynens
    ✓ 3 15m Logical Assignment (Status Update, NamedEvaluation) Justin Ridgewell
    ✓ 3 30m Promise.any & AggregateError update (slides) Shu-yu Guo & Mathias Bynens
    ✓ 2 10m Decorators status update (slides) Kristen Hewell Garrett
    ✓ 2 30m ⌛ Intl.Segmenter for Stage 3 (slides, spec text) Richard Gibson
    ✓ 2 45m Iterator Helpers (slides) Jason Orendorff
    ✓ 2 45m Temporal update (slides) Philip Chimento
    ✓ 2 60m Function Implementation Hiding for stage 3 (slides) (spec text) Michael Ficarra
    ✓ 2 60m Realms, Stage 2 updates (slides) Caridy Patiño, Leo Balter
    ✓ 1 20m Intl.NumberFormat V3 for Stage 2 (slides) Shane F. Carr
    ✓ 1 30m Ergonomic brand checks for private fields for stage 2 Jordan Harband
    ✓ 1 30m Intl.DurationFormat for Stage 2 slides Younies Mahmoud, Ujjwal Sharma
    ✓ 1 30m Record and Tuple update (slides) Robin Ricard, Rick Button
    ✓ 1 45m Do expressions for stage 2 (slides) Kevin Gibbons
    ✓ 1 45m Module attributes for Stage 2 (slides) Sven Sauleau, Daniel Ehrenberg, Myles Borins, Dan Clark
    ✓ 1 45m Built In Modules Update Towards Stage 2 (Slides) Michael Saboff & Mattijs Hoitink
    ✓ 0 30m Arbitrary Module Namespace Names Bradley Farias
    ✓ 0 30m Intl Enumeration API for Stage 1 Slides Frank Yung-Fong Tang
    ✓ 0 30m Deep Path Properties in Record Literals for Stage 1 slides Rick Button
    ✓ 0 30m Smart Unit Preferences in Intl.NumberFormat for Stage 1 slides Younies Mahmoud
    ✓ 0 30m Symbols as WeakMap keys for Stage 1 (repo, slides) Daniel Ehrenberg, Richard Button, Robin Ricard
    ✓ 0 45m Async Context for Stage 1 slides Chengzhong Wu
    0 45m from ... import ( repo ) Bradley Farias
    ✓ 0 45m Generic Comparison (repo; slides) Hemanth HM
    ✓ 0 45m .item() for Stage 1 (slides) Shu-yu Guo, Tab Atkins
    ✓ 0 45m Restrict subclassing support in built-in methods for Stage 1 slides Yulia Startsev, Shu-yu Guo

  14. Longer or open-ended discussions

    ✓ timebox topic presenter
    30m Operator overloading: a good direction for JS? Daniel Ehrenberg
    ✓ 45m Editorial direction: { host, implementation } ⨯ { defined, dependent } (slides) Shu-yu Guo
    45m Cognitive Dimensions of Notation: a framework for reflecting on language design Yulia Startsev and Felienne Hermans

  15. Overflow from timeboxed agenda items (in insertion order)

    ✓ timebox topic presenter
    ✓ 10m Module attributes for Stage 2 reprise (PR, slides) Daniel Ehrenberg

  16. Other business

    1. Thank host

  17. Adjournment

Schedule constraints

  • Mathias: Presenting several items, but can only attend on June 2nd (Tuesday). Would it be possible to schedule the replaceAll + Promise.any/AggregateError + Unicode topics on this day please (preferably early)?
  • Temporal: Preference for Tuesday/Wednesday/Thursday and not starting right at 10:00, but can make it work if that's not possible
  • Kristen Hewell Garrett/Decorators: Unavailable on Monday, preference for Tuesday or Thursday if possible
  • Felienne is out on Monday (holiday)
  • Please give 1 hr heads up for Jason Orendorff
  • Sven Sauleau: Preferably earlier in the day, for module attributes
  • Richard Gibson is unavailable to present on Tuesday June 2 from 13:00–14:00 and 15:00–16:00 US Central (18:00–19:00 and 20:00–21:00 UTC; 11:00–12:00 and 13:00–14:00 US Pacific)

Dates and locations of future meetings

Dates Location Host
2020-07-20 to 2020-07-23 Remote (was Redmond, WA) Microsoft
2020-09-21 to 2020-09-24 Remote (was Tokyo, Japan) Bloomberg
2020-11-16 to 2020-11-19 Remote (was Budapest, Hungary) IBM