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stream: add map method to Readable: #40815

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benjamingr
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This is very much work in progress when meeting @ronag at NodeTLV.

This is based on the ongoing standards work in https://github.com/tc39/proposal-iterator-helpers in order to make Node.js more compatible with the language in the future.

In addition, people often really just want to map a stream and this provides a simpler API than compose or pipeline for simple cases.

This is still missing docs, I want to bikeshed the API and see we have consensus first.

@nodejs-github-bot nodejs-github-bot added needs-ci PRs that need a full CI run. stream Issues and PRs related to the stream subsystem. labels Nov 15, 2021
@benjamingr
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This is still missing:

  • docs (I want this to be experimental, but this bit is straightforward).
  • consensus regarding whether it should be an instance methods (I like better) or static (may be more compatible possibly).
  • consensus regarding its inclusion.

In terms of API - I think this is what people are usually looking for when transforming a stream.

Also cc @mcollina @nodejs/streams to make sure this isn't "under the radar".

@mcollina
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I think it's better to lift the implementation of mapIterator in https://github.com/mcollina/hwp/blob/main/index.js where also @ronag contributed.

@benjamingr
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I don't understand the need for the double queueing here but I am happy to adjust the implementation. The actual API sounds good?

@mcollina
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mcollina commented Nov 15, 2021

I don't understand the need for the double queueing here but I am happy to adjust the implementation. The actual API sounds good?

The implementation in this PR processes chunks one by one, however this is problematic given it's an async function. If we do not support some level of parallel processing it's not going to be really useful because it would be too slow.

@ronag
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ronag commented Nov 15, 2021

Should we use hwp map?

@benjamingr
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The implementation in this PR processes chunks one by one, however this is problematic given it's an async function. If we do not support some level of parallel processing it's not going to be really useful because it would be too slow.

That sounds reasonable. So we agree on the API itself but it would be better if it mapd concurrently.

I'm fine with hwp map as that implementation (can adjust the PR + add tests) :)

I think we should slightly adjust the behavior:

  • Return a stream and not an async iterator (or results array)
  • Name the hwm parameter something more indicative than n (like concurrency or maxConcurrency)?

WDYT?

@jasnell
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jasnell commented Nov 16, 2021

That sounds reasonable. So we agree on the API itself but it would be better if it mapd concurrently.

I think concurrency should be an option, not necessarily the default given that it would introduce non-deterministic ordering of the results.

Options that would appear to make immediate sense here include:

  • concurrency
  • signal (AbortSignal)
const ac = new AbortController();
Readable.from([1, 2, 3, 4, 5]).map((x) => x + x, { concurrency: 5, signal: ac.signal });

@mcollina
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I think concurrency should be an option, not necessarily the default given that it would introduce non-deterministic ordering of the results.

That is incorrect. The implementation I recommended keep the ordering.

@ronag
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ronag commented Nov 17, 2021

@benjamingr I did some work on the PR. I hope you don't mind.

  • Added concurrency and highWaterMark options
  • Output is in order
  • Bypasses a lot of intermediate buffering by creating a Readable directly

@ronag ronag force-pushed the add-map-to-readable-stream branch 4 times, most recently from 19e5c4b to da16246 Compare November 17, 2021 08:12
@benjamingr
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@ronag I don't, feel free, I am still in the conference aftermath here ^^

I'll try and push some docs :)

@ronag ronag force-pushed the add-map-to-readable-stream branch 2 times, most recently from ee87587 to db002da Compare November 17, 2021 08:28
destroy (err, callback) {
if (!err && !this.readableEnded) {
err = new AbortError();
}
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@ronag ronag Nov 17, 2021

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Suggested change
}
}
stream.destroy(err);

Should destroy back propagate to source stream?

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@devsnek does .return propagate in proposal-iterator-helpers?

That is, in that proposal:

const iter = getIterator();
const mapped = iter.map(x => x * 2);
mapped.return(); // is `.return` called on iter?

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@ronag did you resolve because you checked with that? Because I wanna make sure we align

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I resolved it because I added a destroy. It was before I saw your comment.

@ronag ronag force-pushed the add-map-to-readable-stream branch 4 times, most recently from debd387 to 27999bf Compare November 17, 2021 08:41
targos added a commit that referenced this pull request Jan 17, 2022
Notable changes:

child_process:
  * (SEMVER-MINOR) add support for URL to `cp.fork` (Antoine du Hamel) #41225
crypto:
  * (SEMVER-MINOR) alias webcrypto.subtle and webcrypto.getRandomValues on crypto (James M Snell) #41266
doc:
  * add Mesteery to collaborators (Mestery) #41543
events:
  * (SEMVER-MINOR) graduate capturerejections to supported (James M Snell) #41267
  * (SEMVER-MINOR) add EventEmitterAsyncResource to core (James M Snell) #41246
loader:
  * (SEMVER-MINOR) return package format from defaultResolve if known (Gabriel Bota) #40980
perf_hooks:
  * (SEMVER-MINOR) multiple fixes for Histogram (James M Snell) #41153
stream:
  * (SEMVER-MINOR) add filter method to readable (Benjamin Gruenbaum, Robert Nagy) #41354
  * (SEMVER-MINOR) add isReadable helper (Robert Nagy) #41199
  * (SEMVER-MINOR) add map method to Readable (Benjamin Gruenbaum, Robert Nagy) #40815

PR-URL: #41557
targos added a commit that referenced this pull request Jan 18, 2022
Notable changes:

child_process:
  * (SEMVER-MINOR) add support for URL to `cp.fork` (Antoine du Hamel) #41225
crypto:
  * (SEMVER-MINOR) alias webcrypto.subtle and webcrypto.getRandomValues on crypto (James M Snell) #41266
doc:
  * add Mesteery to collaborators (Mestery) #41543
events:
  * (SEMVER-MINOR) graduate capturerejections to supported (James M Snell) #41267
  * (SEMVER-MINOR) add EventEmitterAsyncResource to core (James M Snell) #41246
loader:
  * (SEMVER-MINOR) return package format from defaultResolve if known (Gabriel Bota) #40980
perf_hooks:
  * (SEMVER-MINOR) multiple fixes for Histogram (James M Snell) #41153
stream:
  * (SEMVER-MINOR) add filter method to readable (Benjamin Gruenbaum, Robert Nagy) #41354
  * (SEMVER-MINOR) add isReadable helper (Robert Nagy) #41199
  * (SEMVER-MINOR) add map method to Readable (Benjamin Gruenbaum, Robert Nagy) #40815

PR-URL: #41557
targos added a commit that referenced this pull request Jan 18, 2022
Notable changes:

child_process:
  * (SEMVER-MINOR) add support for URL to `cp.fork` (Antoine du Hamel) #41225
crypto:
  * (SEMVER-MINOR) alias webcrypto.subtle and webcrypto.getRandomValues on crypto (James M Snell) #41266
doc:
  * add Mesteery to collaborators (Mestery) #41543
events:
  * (SEMVER-MINOR) graduate capturerejections to supported (James M Snell) #41267
  * (SEMVER-MINOR) add EventEmitterAsyncResource to core (James M Snell) #41246
loader:
  * (SEMVER-MINOR) return package format from defaultResolve if known (Gabriel Bota) #40980
perf_hooks:
  * (SEMVER-MINOR) multiple fixes for Histogram (James M Snell) #41153
stream:
  * (SEMVER-MINOR) add filter method to readable (Benjamin Gruenbaum, Robert Nagy) #41354
  * (SEMVER-MINOR) add isReadable helper (Robert Nagy) #41199
  * (SEMVER-MINOR) add map method to Readable (Benjamin Gruenbaum, Robert Nagy) #40815

PR-URL: #41557
thedull pushed a commit to thedull/node that referenced this pull request Jan 18, 2022
Notable changes:

child_process:
  * (SEMVER-MINOR) add support for URL to `cp.fork` (Antoine du Hamel) nodejs#41225
crypto:
  * (SEMVER-MINOR) alias webcrypto.subtle and webcrypto.getRandomValues on crypto (James M Snell) nodejs#41266
doc:
  * add Mesteery to collaborators (Mestery) nodejs#41543
events:
  * (SEMVER-MINOR) graduate capturerejections to supported (James M Snell) nodejs#41267
  * (SEMVER-MINOR) add EventEmitterAsyncResource to core (James M Snell) nodejs#41246
loader:
  * (SEMVER-MINOR) return package format from defaultResolve if known (Gabriel Bota) nodejs#40980
perf_hooks:
  * (SEMVER-MINOR) multiple fixes for Histogram (James M Snell) nodejs#41153
stream:
  * (SEMVER-MINOR) add filter method to readable (Benjamin Gruenbaum, Robert Nagy) nodejs#41354
  * (SEMVER-MINOR) add isReadable helper (Robert Nagy) nodejs#41199
  * (SEMVER-MINOR) add map method to Readable (Benjamin Gruenbaum, Robert Nagy) nodejs#40815

PR-URL: nodejs#41557
danielleadams pushed a commit that referenced this pull request Jan 31, 2022
Implement the map method on readable stream. This starts the alignment
with the tc39-iterator-helpers proposal and adds a `.map` method to
every Node.js readable stream.

Co-Authored-By: Robert Nagy <ronag@icloud.com>

PR-URL: #40815
Reviewed-By: Robert Nagy <ronagy@icloud.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
danielleadams pushed a commit that referenced this pull request Jan 31, 2022
This continues the work in #40815 to
make streams compatible with upcoming ECMAScript language features. It
adds an experimental `filter` api to streams and tests/docs for it.

See https://github.com/tc39/proposal-iterator-helpers/

Co-Authored-By: Robert Nagy <ronagy@icloud.com>

PR-URL: #41354
Reviewed-By: Robert Nagy <ronagy@icloud.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Linkgoron pushed a commit to Linkgoron/node that referenced this pull request Jan 31, 2022
Implement the map method on readable stream. This starts the alignment
with the tc39-iterator-helpers proposal and adds a `.map` method to
every Node.js readable stream.

Co-Authored-By: Robert Nagy <ronag@icloud.com>

PR-URL: nodejs#40815
Reviewed-By: Robert Nagy <ronagy@icloud.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Linkgoron pushed a commit to Linkgoron/node that referenced this pull request Jan 31, 2022
This continues the work in nodejs#40815 to
make streams compatible with upcoming ECMAScript language features. It
adds an experimental `filter` api to streams and tests/docs for it.

See https://github.com/tc39/proposal-iterator-helpers/

Co-Authored-By: Robert Nagy <ronagy@icloud.com>

PR-URL: nodejs#41354
Reviewed-By: Robert Nagy <ronagy@icloud.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Linkgoron pushed a commit to Linkgoron/node that referenced this pull request Jan 31, 2022
Notable changes:

child_process:
  * (SEMVER-MINOR) add support for URL to `cp.fork` (Antoine du Hamel) nodejs#41225
crypto:
  * (SEMVER-MINOR) alias webcrypto.subtle and webcrypto.getRandomValues on crypto (James M Snell) nodejs#41266
doc:
  * add Mesteery to collaborators (Mestery) nodejs#41543
events:
  * (SEMVER-MINOR) graduate capturerejections to supported (James M Snell) nodejs#41267
  * (SEMVER-MINOR) add EventEmitterAsyncResource to core (James M Snell) nodejs#41246
loader:
  * (SEMVER-MINOR) return package format from defaultResolve if known (Gabriel Bota) nodejs#40980
perf_hooks:
  * (SEMVER-MINOR) multiple fixes for Histogram (James M Snell) nodejs#41153
stream:
  * (SEMVER-MINOR) add filter method to readable (Benjamin Gruenbaum, Robert Nagy) nodejs#41354
  * (SEMVER-MINOR) add isReadable helper (Robert Nagy) nodejs#41199
  * (SEMVER-MINOR) add map method to Readable (Benjamin Gruenbaum, Robert Nagy) nodejs#40815

PR-URL: nodejs#41557
danielleadams pushed a commit that referenced this pull request Feb 1, 2022
Implement the map method on readable stream. This starts the alignment
with the tc39-iterator-helpers proposal and adds a `.map` method to
every Node.js readable stream.

Co-Authored-By: Robert Nagy <ronag@icloud.com>

PR-URL: #40815
Reviewed-By: Robert Nagy <ronagy@icloud.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
danielleadams pushed a commit that referenced this pull request Feb 1, 2022
This continues the work in #40815 to
make streams compatible with upcoming ECMAScript language features. It
adds an experimental `filter` api to streams and tests/docs for it.

See https://github.com/tc39/proposal-iterator-helpers/

Co-Authored-By: Robert Nagy <ronagy@icloud.com>

PR-URL: #41354
Reviewed-By: Robert Nagy <ronagy@icloud.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
danielleadams added a commit that referenced this pull request Feb 1, 2022
Notable changes:

* doc:
  * add Mesteery to collaborators (Mestery) #41543
  * add @bnb as a collaborator (Tierney Cyren) #41100
* esm:
  * (SEMVER-MINOR) add support for JSON import assertion (Antoine du Hamel) #40250
* lib:
  * (SEMVER-MINOR) make AbortSignal cloneable/transferable (James M Snell) #41050
* process:
  * (SEMVER-MINOR) add `getActiveResourcesInfo()` (Darshan Sen) #40813
* stream:
  * (SEMVER-MINOR) add filter method to readable (Benjamin Gruenbaum) #41354
  * (SEMVER-MINOR) add map method to Readable (Benjamin Gruenbaum) #40815
  * deprecate thenable support (Antoine du Hamel) #40860
* timers:
  * (SEMVER-MINOR) add experimental scheduler api (James M Snell) #40909
danielleadams added a commit that referenced this pull request Feb 1, 2022
Notable changes:

* doc:
  * add Mesteery to collaborators (Mestery) #41543
  * add @bnb as a collaborator (Tierney Cyren) #41100
* esm:
  * (SEMVER-MINOR) add support for JSON import assertion (Antoine du Hamel) #40250
* lib:
  * (SEMVER-MINOR) make AbortSignal cloneable/transferable (James M Snell) #41050
* process:
  * (SEMVER-MINOR) add `getActiveResourcesInfo()` (Darshan Sen) #40813
* stream:
  * (SEMVER-MINOR) add filter method to readable (Benjamin Gruenbaum) #41354
  * (SEMVER-MINOR) add map method to Readable (Benjamin Gruenbaum) #40815
  * deprecate thenable support (Antoine du Hamel) #40860
* timers:
  * (SEMVER-MINOR) add experimental scheduler api (James M Snell) #40909
@danielleadams danielleadams mentioned this pull request Feb 1, 2022
danielleadams added a commit that referenced this pull request Feb 1, 2022
Notable changes:

* doc:
  * add Mesteery to collaborators (Mestery) #41543
  * add @bnb as a collaborator (Tierney Cyren) #41100
* esm:
  * (SEMVER-MINOR) add support for JSON import assertion (Antoine du Hamel) #40250
* lib:
  * (SEMVER-MINOR) make AbortSignal cloneable/transferable (James M Snell) #41050
* process:
  * (SEMVER-MINOR) add `getActiveResourcesInfo()` (Darshan Sen) #40813
* stream:
  * (SEMVER-MINOR) add filter method to readable (Benjamin Gruenbaum) #41354
  * (SEMVER-MINOR) add map method to Readable (Benjamin Gruenbaum) #40815
  * deprecate thenable support (Antoine du Hamel) #40860
* timers:
  * (SEMVER-MINOR) add experimental scheduler api (James M Snell) #40909
danielleadams added a commit that referenced this pull request Feb 1, 2022
Notable changes:

* doc:
  * add Mesteery to collaborators (Mestery) #41543
  * add @bnb as a collaborator (Tierney Cyren) #41100
* esm:
  * (SEMVER-MINOR) add support for JSON import assertion (Antoine du Hamel) #40250
* lib:
  * (SEMVER-MINOR) make AbortSignal cloneable/transferable (James M Snell) #41050
* process:
  * (SEMVER-MINOR) add `getActiveResourcesInfo()` (Darshan Sen) #40813
* stream:
  * (SEMVER-MINOR) add filter method to readable (Benjamin Gruenbaum) #41354
  * (SEMVER-MINOR) add map method to Readable (Benjamin Gruenbaum) #40815
  * deprecate thenable support (Antoine du Hamel) #40860
* timers:
  * (SEMVER-MINOR) add experimental scheduler api (James M Snell) #40909

PR-URL: #41804
danielleadams added a commit that referenced this pull request Feb 1, 2022
Notable changes

* async_hooks:
  * (SEMVER-MINOR) expose async\_wrap providers (Rafael Gonzaga) #40760
* child_process:
  * (SEMVER-MINOR) add support for URL to `cp.fork` (Antoine du Hamel) #41225
* doc:
  * add @Mesteery to collaborators (Mestery) #41543
  * add @bnb as a collaborator (Tierney Cyren) #41100
* esm:
  * (SEMVER-MINOR) add support for JSON import assertion (Antoine du Hamel) #40250
  * (SEMVER-MINOR) graduate capturerejections to supported (James M Snell) #41267
  * (SEMVER-MINOR) add EventEmitterAsyncResource to core (James M Snell) #41246
* events:
  * (SEMVER-MINOR) propagate weak option for kNewListener (James M Snell) #40899
* lib:
  * (SEMVER-MINOR) make AbortSignal cloneable/transferable (James M Snell) #41050
  * (SEMVER-MINOR) add AbortSignal.timeout (James M Snell) #40899
  * (SEMVER-MINOR) add reason to AbortSignal (James M Snell) #40807
  * (SEMVER-MINOR) add unsubscribe method to non-active DC channels (simon-id) #40433
  * (SEMVER-MINOR) add return value for DC channel.unsubscribe (simon-id) #40433
* perf_hooks:
  * (SEMVER-MINOR) multiple fixes for Histogram (James M Snell) #41153
* process:
  * (SEMVER-MINOR) add `getActiveResourcesInfo()` (Darshan Sen) #40813
* src:
  * (SEMVER-MINOR) add x509.fingerprint512 to crypto module (3nprob) #39809
  * (SEMVER-MINOR) add flags for controlling process behavior (Cheng Zhao) #40339
* stream:
  * (SEMVER-MINOR) add filter method to readable (Benjamin Gruenbaum) #41354
  * (SEMVER-MINOR) add isReadable helper (Robert Nagy) #41199
  * (SEMVER-MINOR) add map method to Readable (Benjamin Gruenbaum) #40815
  * deprecate thenable support (Antoine du Hamel) #40860
* util:
  * (SEMVER-MINOR) pass through the inspect function to custom inspect functions (Ruben Bridgewater) #41019
  * (SEMVER-MINOR) add numericSeparator to util.inspect (Ruben Bridgewater) #41003
  * (SEMVER-MINOR) always visualize cause property in errors during inspection (Ruben Bridgewater) #41002
* timers:
  * (SEMVER-MINOR) add experimental scheduler api (James M Snell) #40909
* v8:
  * (SEMVER-MINOR) multi-tenant promise hook api (Stephen Belanger) #39283

PR-URL: #41804
danielleadams added a commit that referenced this pull request Feb 1, 2022
Notable changes

* async_hooks:
  * (SEMVER-MINOR) expose async\_wrap providers (Rafael Gonzaga) #40760
* child_process:
  * (SEMVER-MINOR) add support for URL to `cp.fork` (Antoine du Hamel) #41225
* doc:
  * add @Mesteery to collaborators (Mestery) #41543
  * add @bnb as a collaborator (Tierney Cyren) #41100
* esm:
  * (SEMVER-MINOR) add support for JSON import assertion (Antoine du Hamel) #40250
  * (SEMVER-MINOR) graduate capturerejections to supported (James M Snell) #41267
  * (SEMVER-MINOR) add EventEmitterAsyncResource to core (James M Snell) #41246
* events:
  * (SEMVER-MINOR) propagate weak option for kNewListener (James M Snell) #40899
* lib:
  * (SEMVER-MINOR) make AbortSignal cloneable/transferable (James M Snell) #41050
  * (SEMVER-MINOR) add AbortSignal.timeout (James M Snell) #40899
  * (SEMVER-MINOR) add reason to AbortSignal (James M Snell) #40807
  * (SEMVER-MINOR) add unsubscribe method to non-active DC channels (simon-id) #40433
  * (SEMVER-MINOR) add return value for DC channel.unsubscribe (simon-id) #40433
* perf_hooks:
  * (SEMVER-MINOR) multiple fixes for Histogram (James M Snell) #41153
* process:
  * (SEMVER-MINOR) add `getActiveResourcesInfo()` (Darshan Sen) #40813
* src:
  * (SEMVER-MINOR) add x509.fingerprint512 to crypto module (3nprob) #39809
  * (SEMVER-MINOR) add flags for controlling process behavior (Cheng Zhao) #40339
* stream:
  * (SEMVER-MINOR) add filter method to readable (Benjamin Gruenbaum) #41354
  * (SEMVER-MINOR) add isReadable helper (Robert Nagy) #41199
  * (SEMVER-MINOR) add map method to Readable (Benjamin Gruenbaum) #40815
  * deprecate thenable support (Antoine du Hamel) #40860
* util:
  * (SEMVER-MINOR) pass through the inspect function to custom inspect functions (Ruben Bridgewater) #41019
  * (SEMVER-MINOR) add numericSeparator to util.inspect (Ruben Bridgewater) #41003
  * (SEMVER-MINOR) always visualize cause property in errors during inspection (Ruben Bridgewater) #41002
* timers:
  * (SEMVER-MINOR) add experimental scheduler api (James M Snell) #40909
* v8:
  * (SEMVER-MINOR) multi-tenant promise hook api (Stephen Belanger) #39283

PR-URL: #41804
danielleadams added a commit that referenced this pull request Feb 1, 2022
Notable changes

* async_hooks:
  * (SEMVER-MINOR) expose async\_wrap providers (Rafael Gonzaga) #40760
* child_process:
  * (SEMVER-MINOR) add support for URL to `cp.fork` (Antoine du Hamel) #41225
* doc:
  * add @Mesteery to collaborators (Mestery) #41543
  * add @bnb as a collaborator (Tierney Cyren) #41100
* esm:
  * (SEMVER-MINOR) add support for JSON import assertion (Antoine du Hamel) #40250
  * (SEMVER-MINOR) graduate capturerejections to supported (James M Snell) #41267
  * (SEMVER-MINOR) add EventEmitterAsyncResource to core (James M Snell) #41246
* events:
  * (SEMVER-MINOR) propagate weak option for kNewListener (James M Snell) #40899
* lib:
  * (SEMVER-MINOR) make AbortSignal cloneable/transferable (James M Snell) #41050
  * (SEMVER-MINOR) add AbortSignal.timeout (James M Snell) #40899
  * (SEMVER-MINOR) add reason to AbortSignal (James M Snell) #40807
  * (SEMVER-MINOR) add unsubscribe method to non-active DC channels (simon-id) #40433
  * (SEMVER-MINOR) add return value for DC channel.unsubscribe (simon-id) #40433
* perf_hooks:
  * (SEMVER-MINOR) multiple fixes for Histogram (James M Snell) #41153
* process:
  * (SEMVER-MINOR) add `getActiveResourcesInfo()` (Darshan Sen) #40813
* src:
  * (SEMVER-MINOR) add x509.fingerprint512 to crypto module (3nprob) #39809
  * (SEMVER-MINOR) add flags for controlling process behavior (Cheng Zhao) #40339
* stream:
  * (SEMVER-MINOR) add filter method to readable (Benjamin Gruenbaum) #41354
  * (SEMVER-MINOR) add isReadable helper (Robert Nagy) #41199
  * (SEMVER-MINOR) add map method to Readable (Benjamin Gruenbaum) #40815
  * deprecate thenable support (Antoine du Hamel) #40860
* util:
  * (SEMVER-MINOR) pass through the inspect function to custom inspect functions (Ruben Bridgewater) #41019
  * (SEMVER-MINOR) add numericSeparator to util.inspect (Ruben Bridgewater) #41003
  * (SEMVER-MINOR) always visualize cause property in errors during inspection (Ruben Bridgewater) #41002
* timers:
  * (SEMVER-MINOR) add experimental scheduler api (James M Snell) #40909
* v8:
  * (SEMVER-MINOR) multi-tenant promise hook api (Stephen Belanger) #39283

PR-URL: #41804
danielleadams added a commit that referenced this pull request Feb 1, 2022
Notable changes

* async_hooks:
  * (SEMVER-MINOR) expose async\_wrap providers (Rafael Gonzaga) #40760
* child_process:
  * (SEMVER-MINOR) add support for URL to `cp.fork` (Antoine du Hamel) #41225
* doc:
  * add @Mesteery to collaborators (Mestery) #41543
  * add @bnb as a collaborator (Tierney Cyren) #41100
* esm:
  * (SEMVER-MINOR) add support for JSON import assertion (Antoine du Hamel) #40250
  * (SEMVER-MINOR) graduate capturerejections to supported (James M Snell) #41267
  * (SEMVER-MINOR) add EventEmitterAsyncResource to core (James M Snell) #41246
* events:
  * (SEMVER-MINOR) propagate weak option for kNewListener (James M Snell) #40899
* lib:
  * (SEMVER-MINOR) make AbortSignal cloneable/transferable (James M Snell) #41050
  * (SEMVER-MINOR) add AbortSignal.timeout (James M Snell) #40899
  * (SEMVER-MINOR) add reason to AbortSignal (James M Snell) #40807
  * (SEMVER-MINOR) add unsubscribe method to non-active DC channels (simon-id) #40433
  * (SEMVER-MINOR) add return value for DC channel.unsubscribe (simon-id) #40433
* perf_hooks:
  * (SEMVER-MINOR) multiple fixes for Histogram (James M Snell) #41153
* process:
  * (SEMVER-MINOR) add `getActiveResourcesInfo()` (Darshan Sen) #40813
* src:
  * (SEMVER-MINOR) add x509.fingerprint512 to crypto module (3nprob) #39809
  * (SEMVER-MINOR) add flags for controlling process behavior (Cheng Zhao) #40339
* stream:
  * (SEMVER-MINOR) add filter method to readable (Benjamin Gruenbaum) #41354
  * (SEMVER-MINOR) add isReadable helper (Robert Nagy) #41199
  * (SEMVER-MINOR) add map method to Readable (Benjamin Gruenbaum) #40815
  * deprecate thenable support (Antoine du Hamel) #40860
* util:
  * (SEMVER-MINOR) pass through the inspect function to custom inspect functions (Ruben Bridgewater) #41019
  * (SEMVER-MINOR) add numericSeparator to util.inspect (Ruben Bridgewater) #41003
  * (SEMVER-MINOR) always visualize cause property in errors during inspection (Ruben Bridgewater) #41002
* timers:
  * (SEMVER-MINOR) add experimental scheduler api (James M Snell) #40909
* v8:
  * (SEMVER-MINOR) multi-tenant promise hook api (Stephen Belanger) #39283

PR-URL: #41804
danielleadams added a commit that referenced this pull request Feb 1, 2022
Notable changes

* async_hooks:
  * (SEMVER-MINOR) expose async\_wrap providers (Rafael Gonzaga) #40760
* child_process:
  * (SEMVER-MINOR) add support for URL to `cp.fork` (Antoine du Hamel) #41225
* doc:
  * add @Mesteery to collaborators (Mestery) #41543
  * add @bnb as a collaborator (Tierney Cyren) #41100
* esm:
  * (SEMVER-MINOR) add support for JSON import assertion (Antoine du Hamel) #40250
  * (SEMVER-MINOR) graduate capturerejections to supported (James M Snell) #41267
  * (SEMVER-MINOR) add EventEmitterAsyncResource to core (James M Snell) #41246
* events:
  * (SEMVER-MINOR) propagate weak option for kNewListener (James M Snell) #40899
* lib:
  * (SEMVER-MINOR) make AbortSignal cloneable/transferable (James M Snell) #41050
  * (SEMVER-MINOR) add AbortSignal.timeout (James M Snell) #40899
  * (SEMVER-MINOR) add reason to AbortSignal (James M Snell) #40807
  * (SEMVER-MINOR) add unsubscribe method to non-active DC channels (simon-id) #40433
  * (SEMVER-MINOR) add return value for DC channel.unsubscribe (simon-id) #40433
* perf_hooks:
  * (SEMVER-MINOR) multiple fixes for Histogram (James M Snell) #41153
* process:
  * (SEMVER-MINOR) add `getActiveResourcesInfo()` (Darshan Sen) #40813
* src:
  * (SEMVER-MINOR) add x509.fingerprint512 to crypto module (3nprob) #39809
  * (SEMVER-MINOR) add flags for controlling process behavior (Cheng Zhao) #40339
* stream:
  * (SEMVER-MINOR) add filter method to readable (Benjamin Gruenbaum) #41354
  * (SEMVER-MINOR) add isReadable helper (Robert Nagy) #41199
  * (SEMVER-MINOR) add map method to Readable (Benjamin Gruenbaum) #40815
  * deprecate thenable support (Antoine du Hamel) #40860
* util:
  * (SEMVER-MINOR) pass through the inspect function to custom inspect functions (Ruben Bridgewater) #41019
  * (SEMVER-MINOR) add numericSeparator to util.inspect (Ruben Bridgewater) #41003
  * (SEMVER-MINOR) always visualize cause property in errors during inspection (Ruben Bridgewater) #41002
* timers:
  * (SEMVER-MINOR) add experimental scheduler api (James M Snell) #40909
* v8:
  * (SEMVER-MINOR) multi-tenant promise hook api (Stephen Belanger) #39283

PR-URL: #41804
danielleadams added a commit that referenced this pull request Feb 5, 2022
Notable changes

* async_hooks:
  * (SEMVER-MINOR) expose async\_wrap providers (Rafael Gonzaga) #40760
* child_process:
  * (SEMVER-MINOR) add support for URL to `cp.fork` (Antoine du Hamel) #41225
* doc:
  * add @Mesteery to collaborators (Mestery) #41543
  * add @bnb as a collaborator (Tierney Cyren) #41100
* esm:
  * (SEMVER-MINOR) add support for JSON import assertion (Antoine du Hamel) #40250
  * (SEMVER-MINOR) graduate capturerejections to supported (James M Snell) #41267
  * (SEMVER-MINOR) add EventEmitterAsyncResource to core (James M Snell) #41246
* events:
  * (SEMVER-MINOR) propagate weak option for kNewListener (James M Snell) #40899
* lib:
  * (SEMVER-MINOR) make AbortSignal cloneable/transferable (James M Snell) #41050
  * (SEMVER-MINOR) add AbortSignal.timeout (James M Snell) #40899
  * (SEMVER-MINOR) add reason to AbortSignal (James M Snell) #40807
  * (SEMVER-MINOR) add unsubscribe method to non-active DC channels (simon-id) #40433
  * (SEMVER-MINOR) add return value for DC channel.unsubscribe (simon-id) #40433
* perf_hooks:
  * (SEMVER-MINOR) multiple fixes for Histogram (James M Snell) #41153
* process:
  * (SEMVER-MINOR) add `getActiveResourcesInfo()` (Darshan Sen) #40813
* src:
  * (SEMVER-MINOR) add x509.fingerprint512 to crypto module (3nprob) #39809
  * (SEMVER-MINOR) add flags for controlling process behavior (Cheng Zhao) #40339
* stream:
  * (SEMVER-MINOR) add filter method to readable (Benjamin Gruenbaum) #41354
  * (SEMVER-MINOR) add isReadable helper (Robert Nagy) #41199
  * (SEMVER-MINOR) add map method to Readable (Benjamin Gruenbaum) #40815
  * deprecate thenable support (Antoine du Hamel) #40860
* util:
  * (SEMVER-MINOR) pass through the inspect function to custom inspect functions (Ruben Bridgewater) #41019
  * (SEMVER-MINOR) add numericSeparator to util.inspect (Ruben Bridgewater) #41003
  * (SEMVER-MINOR) always visualize cause property in errors during inspection (Ruben Bridgewater) #41002
* timers:
  * (SEMVER-MINOR) add experimental scheduler api (James M Snell) #40909
* v8:
  * (SEMVER-MINOR) multi-tenant promise hook api (Stephen Belanger) #39283

PR-URL: #41804
danielleadams added a commit that referenced this pull request Feb 6, 2022
Notable changes:

Importing JSON modules now requires experimental import assertions syntax

This release adds experimental support for the import assertions stage 3 proposal.

To keep Node.js ESM implementation as compatible as possible with the HTML spec, import assertions
are now required to import JSON modules (still behind the `--experimental-json-modules` CLI flag):

```js
import info from './package.json' assert { type: 'json' };
// or using dynamic import:
const info = await import('./package.json', { assert: { type: 'json' } });
```

Contributed by Antoine du Hamel and Geoffrey Booth #40250

Other notable changes:

* async_hooks:
  * (SEMVER-MINOR) expose async_wrap providers (Rafael Gonzaga) #40760
* child_process:
  * (SEMVER-MINOR) add support for URL to `cp.fork` (Antoine du Hamel) #41225
* doc:
  * add @Mesteery to collaborators (Mestery) #41543
  * add @bnb as a collaborator (Tierney Cyren) #41100
* esm:
  * (SEMVER-MINOR) graduate capturerejections to supported (James M Snell) #41267
  * (SEMVER-MINOR) add EventEmitterAsyncResource to core (James M Snell) #41246
* events:
  * (SEMVER-MINOR) propagate weak option for kNewListener (James M Snell) #40899
* fs:
  * (SEMVER-MINOR) accept URL as argument for `fs.rm` and `fs.rmSync` (Antoine du Hamel) #41132
* lib:
  * (SEMVER-MINOR) make AbortSignal cloneable/transferable (James M Snell) #41050
  * (SEMVER-MINOR) add AbortSignal.timeout (James M Snell) #40899
  * (SEMVER-MINOR) add reason to AbortSignal (James M Snell) #40807
  * (SEMVER-MINOR) add unsubscribe method to non-active DC channels (simon-id) #40433
  * (SEMVER-MINOR) add return value for DC channel.unsubscribe (simon-id) #40433
* loader:
  * (SEMVER-MINOR) return package format from defaultResolve if known (Gabriel Bota) #40980
* perf_hooks:
  * (SEMVER-MINOR) multiple fixes for Histogram (James M Snell) #41153
* process:
  * (SEMVER-MINOR) add `getActiveResourcesInfo()` (Darshan Sen) #40813
* src:
  * (SEMVER-MINOR) add x509.fingerprint512 to crypto module (3nprob) #39809
  * (SEMVER-MINOR) add flags for controlling process behavior (Cheng Zhao) #40339
* stream:
  * (SEMVER-MINOR) add filter method to readable (Benjamin Gruenbaum) #41354
  * (SEMVER-MINOR) add isReadable helper (Robert Nagy) #41199
  * (SEMVER-MINOR) add map method to Readable (Benjamin Gruenbaum) #40815
  * deprecate thenable support (Antoine du Hamel) #40860
* util:
  * (SEMVER-MINOR) pass through the inspect function to custom inspect functions (Ruben Bridgewater) https://github.com/nodejs/node/pull41019
  * (SEMVER-MINOR) add numericSeparator to util.inspect (Ruben Bridgewater) #41003
  * (SEMVER-MINOR) always visualize cause property in errors during inspection (Ruben Bridgewater) https://github.com/nodejs/node/pull41002
* timers:
  * (SEMVER-MINOR) add experimental scheduler api (James M Snell) #40909
* v8:
  * (SEMVER-MINOR) multi-tenant promise hook api (Stephen Belanger) #39283

PR-URL: #41804
danielleadams added a commit that referenced this pull request Feb 6, 2022
Notable changes:

Importing JSON modules now requires experimental import assertions syntax

This release adds experimental support for the import assertions stage 3 proposal.

To keep Node.js ESM implementation as compatible as possible with the HTML spec, import assertions
are now required to import JSON modules (still behind the `--experimental-json-modules` CLI flag):

```mjs
import info from './package.json' assert { type: 'json' };
```

Or use dynamic import:

```mjs
const info = await import('./package.json', { assert: { type: 'json' } });
```

Contributed by Antoine du Hamel and Geoffrey Booth #40250

Other notable changes:

* async_hooks:
  * (SEMVER-MINOR) expose async_wrap providers (Rafael Gonzaga) #40760
* child_process:
  * (SEMVER-MINOR) add support for URL to `cp.fork` (Antoine du Hamel) #41225
* doc:
  * add @Mesteery to collaborators (Mestery) #41543
  * add @bnb as a collaborator (Tierney Cyren) #41100
* esm:
  * (SEMVER-MINOR) graduate capturerejections to supported (James M Snell) #41267
  * (SEMVER-MINOR) add EventEmitterAsyncResource to core (James M Snell) #41246
* events:
  * (SEMVER-MINOR) propagate weak option for kNewListener (James M Snell) #40899
* fs:
  * (SEMVER-MINOR) accept URL as argument for `fs.rm` and `fs.rmSync` (Antoine du Hamel) #41132
* lib:
  * (SEMVER-MINOR) make AbortSignal cloneable/transferable (James M Snell) #41050
  * (SEMVER-MINOR) add AbortSignal.timeout (James M Snell) #40899
  * (SEMVER-MINOR) add reason to AbortSignal (James M Snell) #40807
  * (SEMVER-MINOR) add unsubscribe method to non-active DC channels (simon-id) #40433
  * (SEMVER-MINOR) add return value for DC channel.unsubscribe (simon-id) #40433
* loader:
  * (SEMVER-MINOR) return package format from defaultResolve if known (Gabriel Bota) #40980
* perf_hooks:
  * (SEMVER-MINOR) multiple fixes for Histogram (James M Snell) #41153
* process:
  * (SEMVER-MINOR) add `getActiveResourcesInfo()` (Darshan Sen) #40813
* src:
  * (SEMVER-MINOR) add x509.fingerprint512 to crypto module (3nprob) #39809
  * (SEMVER-MINOR) add flags for controlling process behavior (Cheng Zhao) #40339
* stream:
  * (SEMVER-MINOR) add filter method to readable (Benjamin Gruenbaum) #41354
  * (SEMVER-MINOR) add isReadable helper (Robert Nagy) #41199
  * (SEMVER-MINOR) add map method to Readable (Benjamin Gruenbaum) #40815
  * deprecate thenable support (Antoine du Hamel) #40860
* util:
  * (SEMVER-MINOR) pass through the inspect function to custom inspect functions (Ruben Bridgewater) https://github.com/nodejs/node/pull41019
  * (SEMVER-MINOR) add numericSeparator to util.inspect (Ruben Bridgewater) #41003
  * (SEMVER-MINOR) always visualize cause property in errors during inspection (Ruben Bridgewater) https://github.com/nodejs/node/pull41002
* timers:
  * (SEMVER-MINOR) add experimental scheduler api (James M Snell) #40909
* v8:
  * (SEMVER-MINOR) multi-tenant promise hook api (Stephen Belanger) #39283

PR-URL: #41804
danielleadams added a commit that referenced this pull request Feb 6, 2022
Notable changes:

Importing JSON modules now requires experimental import assertions syntax

This release adds experimental support for the import assertions stage 3 proposal.

To keep Node.js ESM implementation as compatible as possible with the HTML spec, import assertions
are now required to import JSON modules (still behind the `--experimental-json-modules` CLI flag):

```mjs
import info from './package.json' assert { type: 'json' };
```

Or use dynamic import:

```mjs
const info = await import('./package.json', { assert: { type: 'json' } });
```

Contributed by Antoine du Hamel and Geoffrey Booth #40250

Other notable changes:

* async_hooks:
  * (SEMVER-MINOR) expose async_wrap providers (Rafael Gonzaga) #40760
* child_process:
  * (SEMVER-MINOR) add support for URL to `cp.fork` (Antoine du Hamel) #41225
* doc:
  * add @Mesteery to collaborators (Mestery) #41543
  * add @bnb as a collaborator (Tierney Cyren) #41100
* esm:
  * (SEMVER-MINOR) graduate capturerejections to supported (James M Snell) #41267
  * (SEMVER-MINOR) add EventEmitterAsyncResource to core (James M Snell) #41246
* events:
  * (SEMVER-MINOR) propagate weak option for kNewListener (James M Snell) #40899
* fs:
  * (SEMVER-MINOR) accept URL as argument for `fs.rm` and `fs.rmSync` (Antoine du Hamel) #41132
* lib:
  * (SEMVER-MINOR) make AbortSignal cloneable/transferable (James M Snell) #41050
  * (SEMVER-MINOR) add AbortSignal.timeout (James M Snell) #40899
  * (SEMVER-MINOR) add reason to AbortSignal (James M Snell) #40807
  * (SEMVER-MINOR) add unsubscribe method to non-active DC channels (simon-id) #40433
  * (SEMVER-MINOR) add return value for DC channel.unsubscribe (simon-id) #40433
* loader:
  * (SEMVER-MINOR) return package format from defaultResolve if known (Gabriel Bota) #40980
* perf_hooks:
  * (SEMVER-MINOR) multiple fixes for Histogram (James M Snell) #41153
* process:
  * (SEMVER-MINOR) add `getActiveResourcesInfo()` (Darshan Sen) #40813
* src:
  * (SEMVER-MINOR) add x509.fingerprint512 to crypto module (3nprob) #39809
  * (SEMVER-MINOR) add flags for controlling process behavior (Cheng Zhao) #40339
* stream:
  * (SEMVER-MINOR) add filter method to readable (Benjamin Gruenbaum) #41354
  * (SEMVER-MINOR) add isReadable helper (Robert Nagy) #41199
  * (SEMVER-MINOR) add map method to Readable (Benjamin Gruenbaum) #40815
  * deprecate thenable support (Antoine du Hamel) #40860
* util:
  * (SEMVER-MINOR) pass through the inspect function to custom inspect functions (Ruben Bridgewater) #41019
  * (SEMVER-MINOR) add numericSeparator to util.inspect (Ruben Bridgewater) #41003
  * (SEMVER-MINOR) always visualize cause property in errors during inspection (Ruben Bridgewater) #41002
* timers:
  * (SEMVER-MINOR) add experimental scheduler api (James M Snell) #40909
* v8:
  * (SEMVER-MINOR) multi-tenant promise hook api (Stephen Belanger) #39283

PR-URL: #41804
danielleadams added a commit that referenced this pull request Feb 6, 2022
Notable changes:

Importing JSON modules now requires experimental import assertions
syntax

This release adds experimental support for the import assertions stage 3
proposal.

To keep Node.js ESM implementation as compatible as possible with the
HTML spec, import assertions are now required to import JSON modules
(still behind the `--experimental-json-modules` CLI flag):

```mjs
import info from './package.json' assert { type: 'json' };
```

Or use dynamic import:

```mjs
const info = await import('./package.json', {
  assert: { type: 'json' }
});
```

Contributed by Antoine du Hamel and Geoffrey Booth #40250

Other notable changes:

* async_hooks:
  * (SEMVER-MINOR) expose async_wrap providers (Rafael Gonzaga) #40760
* child_process:
  * (SEMVER-MINOR) add support for URL to `cp.fork` (Antoine du Hamel) #41225
* doc:
  * add @Mesteery to collaborators (Mestery) #41543
  * add @bnb as a collaborator (Tierney Cyren) #41100
* esm:
  * (SEMVER-MINOR) graduate capturerejections to supported (James M Snell) #41267
  * (SEMVER-MINOR) add EventEmitterAsyncResource to core (James M Snell) #41246
* events:
  * (SEMVER-MINOR) propagate weak option for kNewListener (James M Snell) #40899
* fs:
  * (SEMVER-MINOR) accept URL as argument for `fs.rm` and `fs.rmSync` (Antoine du Hamel) #41132
* lib:
  * (SEMVER-MINOR) make AbortSignal cloneable/transferable (James M Snell) #41050
  * (SEMVER-MINOR) add AbortSignal.timeout (James M Snell) #40899
  * (SEMVER-MINOR) add reason to AbortSignal (James M Snell) #40807
  * (SEMVER-MINOR) add unsubscribe method to non-active DC channels (simon-id) #40433
  * (SEMVER-MINOR) add return value for DC channel.unsubscribe (simon-id) #40433
* loader:
  * (SEMVER-MINOR) return package format from defaultResolve if known (Gabriel Bota) #40980
* perf_hooks:
  * (SEMVER-MINOR) multiple fixes for Histogram (James M Snell) #41153
* process:
  * (SEMVER-MINOR) add `getActiveResourcesInfo()` (Darshan Sen) #40813
* src:
  * (SEMVER-MINOR) add x509.fingerprint512 to crypto module (3nprob) #39809
  * (SEMVER-MINOR) add flags for controlling process behavior (Cheng Zhao) #40339
* stream:
  * (SEMVER-MINOR) add filter method to readable (Benjamin Gruenbaum) #41354
  * (SEMVER-MINOR) add isReadable helper (Robert Nagy) #41199
  * (SEMVER-MINOR) add map method to Readable (Benjamin Gruenbaum) #40815
  * deprecate thenable support (Antoine du Hamel) #40860
* util:
  * (SEMVER-MINOR) pass through the inspect function to custom inspect functions (Ruben Bridgewater) #41019
  * (SEMVER-MINOR) add numericSeparator to util.inspect (Ruben Bridgewater) #41003
  * (SEMVER-MINOR) always visualize cause property in errors during inspection (Ruben Bridgewater) #41002
* timers:
  * (SEMVER-MINOR) add experimental scheduler api (James M Snell) #40909
* v8:
  * (SEMVER-MINOR) multi-tenant promise hook api (Stephen Belanger) #39283

PR-URL: #41804
danielleadams added a commit that referenced this pull request Feb 7, 2022
Notable changes:

Importing JSON modules now requires experimental import assertions
syntax

This release adds experimental support for the import assertions stage 3
proposal.

To keep Node.js ESM implementation as compatible as possible with the
HTML spec, import assertions are now required to import JSON modules
(still behind the `--experimental-json-modules` CLI flag):

```mjs
import info from './package.json' assert { type: 'json' };
```

Or use dynamic import:

```mjs
const info = await import('./package.json', {
  assert: { type: 'json' }
});
```

Contributed by Antoine du Hamel and Geoffrey Booth #40250

Other notable changes:

* async_hooks:
  * (SEMVER-MINOR) expose async_wrap providers (Rafael Gonzaga) #40760
* child_process:
  * (SEMVER-MINOR) add support for URL to `cp.fork` (Antoine du Hamel) #41225
* doc:
  * add @Mesteery to collaborators (Mestery) #41543
  * add @bnb as a collaborator (Tierney Cyren) #41100
* esm:
  * (SEMVER-MINOR) graduate capturerejections to supported (James M Snell) #41267
  * (SEMVER-MINOR) add EventEmitterAsyncResource to core (James M Snell) #41246
* events:
  * (SEMVER-MINOR) propagate weak option for kNewListener (James M Snell) #40899
* fs:
  * (SEMVER-MINOR) accept URL as argument for `fs.rm` and `fs.rmSync` (Antoine du Hamel) #41132
* lib:
  * (SEMVER-MINOR) make AbortSignal cloneable/transferable (James M Snell) #41050
  * (SEMVER-MINOR) add AbortSignal.timeout (James M Snell) #40899
  * (SEMVER-MINOR) add reason to AbortSignal (James M Snell) #40807
  * (SEMVER-MINOR) add unsubscribe method to non-active DC channels (simon-id) #40433
  * (SEMVER-MINOR) add return value for DC channel.unsubscribe (simon-id) #40433
* loader:
  * (SEMVER-MINOR) return package format from defaultResolve if known (Gabriel Bota) #40980
* perf_hooks:
  * (SEMVER-MINOR) multiple fixes for Histogram (James M Snell) #41153
* process:
  * (SEMVER-MINOR) add `getActiveResourcesInfo()` (Darshan Sen) #40813
* src:
  * (SEMVER-MINOR) add x509.fingerprint512 to crypto module (3nprob) #39809
  * (SEMVER-MINOR) add flags for controlling process behavior (Cheng Zhao) #40339
* stream:
  * (SEMVER-MINOR) add filter method to readable (Benjamin Gruenbaum) #41354
  * (SEMVER-MINOR) add isReadable helper (Robert Nagy) #41199
  * (SEMVER-MINOR) add map method to Readable (Benjamin Gruenbaum) #40815
  * deprecate thenable support (Antoine du Hamel) #40860
* util:
  * (SEMVER-MINOR) pass through the inspect function to custom inspect functions (Ruben Bridgewater) #41019
  * (SEMVER-MINOR) add numericSeparator to util.inspect (Ruben Bridgewater) #41003
  * (SEMVER-MINOR) always visualize cause property in errors during inspection (Ruben Bridgewater) #41002
* timers:
  * (SEMVER-MINOR) add experimental scheduler api (James M Snell) #40909
* v8:
  * (SEMVER-MINOR) multi-tenant promise hook api (Stephen Belanger) #39283

PR-URL: #41804
danielleadams added a commit that referenced this pull request Feb 8, 2022
Notable changes:

Importing JSON modules now requires experimental import assertions
syntax

This release adds experimental support for the import assertions stage 3
proposal.

To keep Node.js ESM implementation as compatible as possible with the
HTML spec, import assertions are now required to import JSON modules
(still behind the `--experimental-json-modules` CLI flag):

```mjs
import info from './package.json' assert { type: 'json' };
```

Or use dynamic import:

```mjs
const info = await import('./package.json', {
  assert: { type: 'json' }
});
```

Contributed by Antoine du Hamel and Geoffrey Booth #40250

Other notable changes:

* async_hooks:
  * (SEMVER-MINOR) expose async_wrap providers (Rafael Gonzaga) #40760
* child_process:
  * (SEMVER-MINOR) add support for URL to `cp.fork` (Antoine du Hamel) #41225
* doc:
  * add @Mesteery to collaborators (Mestery) #41543
  * add @bnb as a collaborator (Tierney Cyren) #41100
* esm:
  * (SEMVER-MINOR) graduate capturerejections to supported (James M Snell) #41267
  * (SEMVER-MINOR) add EventEmitterAsyncResource to core (James M Snell) #41246
* events:
  * (SEMVER-MINOR) propagate weak option for kNewListener (James M Snell) #40899
* fs:
  * (SEMVER-MINOR) accept URL as argument for `fs.rm` and `fs.rmSync` (Antoine du Hamel) #41132
* lib:
  * (SEMVER-MINOR) make AbortSignal cloneable/transferable (James M Snell) #41050
  * (SEMVER-MINOR) add AbortSignal.timeout (James M Snell) #40899
  * (SEMVER-MINOR) add reason to AbortSignal (James M Snell) #40807
  * (SEMVER-MINOR) add unsubscribe method to non-active DC channels (simon-id) #40433
  * (SEMVER-MINOR) add return value for DC channel.unsubscribe (simon-id) #40433
* loader:
  * (SEMVER-MINOR) return package format from defaultResolve if known (Gabriel Bota) #40980
* perf_hooks:
  * (SEMVER-MINOR) multiple fixes for Histogram (James M Snell) #41153
* process:
  * (SEMVER-MINOR) add `getActiveResourcesInfo()` (Darshan Sen) #40813
* src:
  * (SEMVER-MINOR) add x509.fingerprint512 to crypto module (3nprob) #39809
  * (SEMVER-MINOR) add flags for controlling process behavior (Cheng Zhao) #40339
* stream:
  * (SEMVER-MINOR) add filter method to readable (Benjamin Gruenbaum) #41354
  * (SEMVER-MINOR) add isReadable helper (Robert Nagy) #41199
  * (SEMVER-MINOR) add map method to Readable (Benjamin Gruenbaum) #40815
  * deprecate thenable support (Antoine du Hamel) #40860
* util:
  * (SEMVER-MINOR) pass through the inspect function to custom inspect functions (Ruben Bridgewater) #41019
  * (SEMVER-MINOR) add numericSeparator to util.inspect (Ruben Bridgewater) #41003
  * (SEMVER-MINOR) always visualize cause property in errors during inspection (Ruben Bridgewater) #41002
* timers:
  * (SEMVER-MINOR) add experimental scheduler api (James M Snell) #40909
* v8:
  * (SEMVER-MINOR) multi-tenant promise hook api (Stephen Belanger) #39283

PR-URL: #41804
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notable-change PRs with changes that should be highlighted in changelogs. semver-minor PRs that contain new features and should be released in the next minor version. stream Issues and PRs related to the stream subsystem.
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