# 79th meeting of TC39

- TCQ: https://tcq.app/meeting/0pdO
- Hallway track: https://hubs.mozilla.com/oAAvRHu/tc39
- Agenda: https://github.com/tc39/agendas/blob/master/2021/01.md
- Reflector: https://github.com/tc39/Reflector/issues/340

_see [below](#emoji-legend) for emoji legend_

## Day 1, Monday ([notes](https://mths.be/tc39day1))

<details open>
<summary>November 16th, 2020, 10:00 to 15:00 CET (UTC +1)</summary>

### 10:00-12:00

- Opening, welcome, housekeeping (Aki)
- Introduce chairs, CoC, communication tools, IPR
- Find volunteers for note taking
- Next meeting date, time, logistics
- Approval of the minutes from last meeting
- Adoption of the agenda
- Plenary Scheduling (5m, Rob)
- Secretary's Report (15m, Istvan Sebestyen)
- ECMA262 Status Updates (15m)
- ECMA402 Status Updates (15m, Ujjwal)
- ECMA404 Status Updates (1m)
- Test262 Status Updates
- Updates from the CoC Committee (15m)
- Update on Chair Group for 2021 (5m, Rob)
- 15m Handling of `NaN` and side effects in Date.prototype.set* methods Kevin Gibbons
- 15m Handling `await` in left operands of exponentiation Daniel Rosenwasser, Kevin Gibbons
- 15m `__proto__` normative optional options Gus Caplan, Jordan Harband
- 15m Re-resolve unresolvable bindings in PutValue Shu-yu Guo
- 15m IntegerIndexedElementSet should always indicate success Kevin Gibbons

### lunch (60 minutes)

### 13:00-15:00

- 15m Give %TypedArray% methods explicit algorithms Ross Kirsling, Shu-yu Guo
- 60m Vision for concurrent JS + constellations of proposals Shu-yu Guo
- 45m RegExp Matches Indices JSC Implementation feedback Michael Saboff
- 20m Supporting MDN's documentation about in TC39's output Daniel Ehrenberg
</details>

## Day 2, Tuesday ([notes](https://mths.be/tc39day2))

<details>

<summary>

November 17th, 2020, 10:00 to 15:00 CET (UTC +1)

</summary>

### 10:00-12:00

- 15m Default `constructors` and spread operations Gus Caplan
- 30m .item() rename + revisit inclusion on `String` Shu-yu Guo 🔒⏰
- 25m Standardized Debug for Stage 2 Gus Caplan 🔒⏰
- 30m Import assertions status update Sven Sauleau, Dan Clark and Daniel Ehrenberg

### lunch (60 minutes)

### 13:00-15:00
- 60m Grouped Accessors and Auto-Accessors Ron Buckton
- 60m Realms for Stage 3, tentatively. Leo Balter, Caridy Patiño 🔒⏰

</details>

## Day 3, Wednesday ([notes](https://mths.be/tc39day3))

<details>

<summary>

November 18th, 2020, 10:00 to 15:00 CET (UTC +1)

</summary>

### 10:00-12:00

- 30m JSON modules for Stage 3 Sven Sauleau, Dan Clark and Daniel Ehrenberg 🔒⏰
- 60m Tour of Temporal Philip Chimento, Ujjwal Sharma 🔒📅
- 20m Intl Enumeration API update Frank Yung-Fong Tang

### lunch (60 minutes)

### 13:00-15:00

- 30m JS Module Blocks Surma 🔒📅⏰
- 30m Process Update Yulia Startsev
- 45m ⌛ Regex: Adopting Unicode behavior for multi-code-point character classes Markus Scherer, Mathias Bynens 🔒⏰

</details>

## Day 4, Thursday ([notes](https://mths.be/tc39day4))

<details open>

<summary>

November 19th, 2020, 10:00 to 15:00 CET (UTC +1)

</summary>

### 10:00-12:00

- 60m Extensions for Stage 1 HE Shi-Jun 🔒📅
- 30m Dealing with TC39 Data Yulia Startsev 🔒⏰
- [up to] 15m return to JSON modules for Stage 3 Sven Sauleau, Dan Clark and Daniel Ehrenberg 🔒📅

### lunch (60 minutes)

### 13:00-15:00

- 10m Revisit Supporting MDN's documentation about in TC39's output Daniel Ehrenberg
- [up to] 15m revisiting Grouped Accessors and Auto-Accessors Ron Buckton
- 25m Error Cause for Stage 2 Chengzhong Wu and Hemanth HM
- 10m Incubator call chartering shu
- 60m Batch preloading and JavaScript Daniel Ehrenberg 🔒📅⏰

</details>

***

## Overflow

### From agenda

### Timebox overrun

- ☑️ Revisit Supporting MDN's documentation about in TC39's output Daniel Ehrenberg
- ☑️ Revisit JSON modules for Stage 3 Sven Sauleau, Dan Clark and Daniel Ehrenberg 🔒⏰
- ◻️ Revisit Grouped Accessors and Auto-Accessors Ron Buckton

## Schedule constraints

- ☑️ Surma is available on Wednesday, November 18 only.
- ☑️ Temporal preferred to be Wednesday or Thursday.
- ☑️ Jordan is available the first two hours of each day, and would like to be present for: .item (specifically re string inclusion), JSON modules, standardized debug, and "TC39 Data".
- ☑️ Batch preloading is preferred to be discussed on Wednesday or Thursday as the last item of the day.
- ☑️ Hax requested to present Vision for concurrent JS on day 3 or 4
- ☑️ Leo requested realms remain as the last hour of the day so he can get his coworkers to join
- ☑️ Shane Carr requested on behalf of Markus that Regex: Adopting Unicode behavior be presented at the end of the day

## emoji legend

_note: this is mostly intended to be information for chairs in the scheduling and re-arrangement process_

- ☑️ - schedule constraints are currently met (remove if schedule changes must be made)
- 🔒 - agenda item is placed intentionally to accomodate schedule constraints
- 📅 - agenda item is constrained by day
- ⏰ - agenda item is constrained by time
- ⏳ - agenda item added after deadline

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