New context API #11818

acdlite · 2017-12-09T08:52:02Z

Introduces a declarative context API that propagates updates even when shouldComponentUpdate returns false.

We'll land this behind a feature flag and try it out on a Facebook product (also behind a feature flag) to get some real-world performance data. My plan is to build the React Redux API on top of it, find our largest product that uses Redux, swap out the implementation, and see what happens.

TODO:

Should be able to stop scanning when we hit a matching provider, then continue the scan later. Already doing this for matching consumers.
Use ReactElement as child type to save on bundle size.
Fuzz test.
Should we use Object.is to compare context values, or is === enough? shallowEqual uses Object.is, but we use === everywhere else.
Unwind context stack when interrupted (error, high pri update).
SSR
React.Children
Put this behind a feature flag.

gaearon · 2017-12-09T10:17:46Z

More TODOs:

SSR support
React.Children should treat it as a valid type (see the switch in it)

gaearon · 2017-12-12T00:34:08Z

Do you think it's worth copy pasting all/most old tests using context and porting them to the new API?

iamdustan · 2017-12-12T18:40:02Z

packages/react-reconciler/src/ReactFiberBeginWork.js

+            }
+            // Don't scan deeper than a matching consumer. When we render the
+            // consumer, we'll continue scanning from that point. This way the
+            // scanning work is time-sliced.


does this imply that the internal subscriptions from react-redux (https://github.com/reactjs/react-redux/blob/master/src/utils/Subscription.js#L58) will be handled by React itself then?

That's the plan

jquense · 2017-12-12T21:03:15Z

we should ping the enzyme folks as well, they'll most likely need to update the traversal logic. @aweary

gaearon · 2017-12-12T22:22:00Z

Why does this affect traversal?

jquense · 2017-12-12T22:53:33Z

ah maybe it doesn't :p it looked like it was adding new tag sort. I maybe have just been reading the PR wrong ignore me!

gaearon · 2017-12-12T23:09:27Z

Ooh I see what you mean. I think @acdlite decided against that though and will keep it an element, overloading .type instead (not updated PR yet). But it's a good point to consider.

acdlite · 2017-12-13T00:04:04Z

@jquense @gaearon The child returned from render will be a ReactElement, but it's still using a special Fiber tag internally.

acdlite · 2017-12-13T00:06:00Z

Do you think it's worth copy pasting all/most old tests using context and porting them to the new API?

Eventually yeah. Semantically there's no reason it shouldn't. The biggest open question is performance, so before we worry about upgrade paths we need to find an implementation that works at scale. So I'd rather land this behind a feature flag and try this out on www.

iamdustan · 2017-12-13T01:08:47Z

Fwiw I'd be happy to test this out at Webflow, too, and share any perf data.

gaearon · 2017-12-14T17:43:51Z

packages/react-dom/src/server/ReactPartialRenderer.js

@@ -116,6 +123,36 @@ if (__DEV__) {
  };
 }

+// Context (new API)
+let providerStack: Array<ReactProvider<mixed>> = []; // Stack of provider objects


Is this reentrant?

Imagine renderToString(<App />) where App calls renderToString() on another tree.

Ooh, yeah, I'll put these on the instance and add a test

gaearon · 2017-12-14T17:44:44Z

Silly GitHub has hidden my comment. Please don't ignore it. :-)

acdlite · 2017-12-14T19:15:29Z

Updated with test for reentrant server renders

acdlite · 2017-12-14T19:37:23Z

packages/react-dom/src/server/ReactPartialRenderer.js

@@ -187,7 +194,7 @@ function warnNoop(
    const constructor = publicInstance.constructor;
    const componentName =
      (constructor && getComponentName(constructor)) || 'ReactClass';
-    const warningKey = `${componentName}.${callerName}`;


This change is because the previous version was screwing up my editor's syntax highlighting 😆

Sounds like the worst possible reason for a change in a project with more than one developer.

I can think of worse ones

5: Update react monorepo to v16.3.2 r=mythmon a=renovate[bot] This Pull Request renovates the package group "react monorepo". - [react-dom](https://github.com/facebook/react) (`dependencies`): from `16.2.0` to `16.3.2` - [react](https://github.com/facebook/react) (`dependencies`): from `16.2.0` to `16.3.2` # Release Notes <details> <summary>facebook/react</summary> ### [`v16.3.0`](https://github.com/facebook/react/blob/master/CHANGELOG.md#1630-March-29-2018) ##### React * Add a new officially supported context API. ([@acdlite] in [#11818](`https://github.com/facebook/react/pull/11818`)) * Add a new `React.createRef()` API as an ergonomic alternative to callback refs. ([@trueadm] in [#12162](`https://github.com/facebook/react/pull/12162`)) * Add a new `React.forwardRef()` API to let components forward their refs to a child. ([@bvaughn] in [#12346](`https://github.com/facebook/react/pull/12346`)) * Fix a false positive warning in IE11 when using `React.Fragment`. ([@XaveScor] in [#11823](`https://github.com/facebook/react/pull/11823`)) * Replace `React.unstable_AsyncComponent` with `React.unstable_AsyncMode`. ([@acdlite] in [#12117](`https://github.com/facebook/react/pull/12117`)) * Improve the error message when calling `setState()` on an unmounted component. ([@sophiebits] in [#12347](`https://github.com/facebook/react/pull/12347`)) ##### React DOM * Add a new `getDerivedStateFromProps()` lifecycle and `UNSAFE_` aliases for the legacy lifecycles. ([@bvaughn] in [#12028](`https://github.com/facebook/react/pull/12028`)) * Add a new `getSnapshotBeforeUpdate()` lifecycle. ([@bvaughn] in [#12404](`https://github.com/facebook/react/pull/12404`)) * Add a new `<React.StrictMode>` wrapper to help prepare apps for async rendering. ([@bvaughn] in [#12083](`https://github.com/facebook/react/pull/12083`)) * Add support for `onLoad` and `onError` events on the `<link>` tag. ([@roderickhsiao] in [#11825](`https://github.com/facebook/react/pull/11825`)) * Add support for `noModule` boolean attribute on the `<script>` tag. ([@aweary] in [#11900](`https://github.com/facebook/react/pull/11900`)) * Fix minor DOM input bugs in IE and Safari. ([@nhunzaker] in [#11534](`https://github.com/facebook/react/pull/11534`)) * Correctly detect Ctrl + Enter in `onKeyPress` in more browsers. ([@nstraub] in [#10514](`https://github.com/facebook/react/pull/10514`)) * Fix containing elements getting focused on SSR markup mismatch. ([@koba04] in [#11737](`https://github.com/facebook/react/pull/11737`)) * Fix `value` and `defaultValue` to ignore Symbol values. ([@nhunzaker] in [#11741](`https://github.com/facebook/react/pull/11741`)) * Fix refs to class components not getting cleaned up when the attribute is removed. ([@bvaughn] in [#12178](`https://github.com/facebook/react/pull/12178`)) * Fix an IE/Edge issue when rendering inputs into a different window. ([@M-ZubairAhmed] in [#11870](`https://github.com/facebook/react/pull/11870`)) * Throw with a meaningful message if the component runs after jsdom has been destroyed. ([@gaearon] in [#11677](`https://github.com/facebook/react/pull/11677`)) * Don't crash if there is a global variable called `opera` with a `null` value. [@alisherdavronov] in [#11854](`https://github.com/facebook/react/pull/11854`)) * Don't check for old versions of Opera. ([@skiritsis] in [#11921](`https://github.com/facebook/react/pull/11921`)) * Deduplicate warning messages about `<option selected>`. ([@watadarkstar] in [#11821](`https://github.com/facebook/react/pull/11821`)) * Deduplicate warning messages about invalid callback. ([@yenshih] in [#11833](`https://github.com/facebook/react/pull/11833`)) * Deprecate `ReactDOM.unstable_createPortal()` in favor of `ReactDOM.createPortal()`. ([@prometheansacrifice] in [#11747](`https://github.com/facebook/react/pull/11747`)) * Don't emit User Timing entries for context types. ([@abhaynikam] in [#12250](`https://github.com/facebook/react/pull/12250`)) * Improve the error message when context consumer child isn't a function. ([@raunofreiberg] in [#12267](`https://github.com/facebook/react/pull/12267`)) * Improve the error message when adding a ref to a functional component. ([@skiritsis] in [#11782](`https://github.com/facebook/react/pull/11782`)) ##### React DOM Server * Prevent an infinite loop when attempting to render portals with SSR. ([@gaearon] in [#11709](`https://github.com/facebook/react/pull/11709`)) * Warn if a class doesn't extend `React.Component`. ([@wyze] in [#11993](`https://github.com/facebook/react/pull/11993`)) * Fix an issue with `this.state` of different components getting mixed up. ([@sophiebits] in [#12323](`https://github.com/facebook/react/pull/12323`)) * Provide a better message when component type is undefined. ([@HeroProtagonist] in [#11966](`https://github.com/facebook/react/pull/11966`)) --- ### [`v16.3.1`](https://github.com/facebook/react/blob/master/CHANGELOG.md#1631-April-3-2018) ##### React * Fix a false positive warning in IE11 when using `Fragment`. ([@heikkilamarko] in [#12504](`https://github.com/facebook/react/pull/12504`)) * Prefix a private API. ([@Andarist] in [#12501](`https://github.com/facebook/react/pull/12501`)) * Improve the warning when calling `setState()` in constructor. ([@gaearon] in [#12532](`https://github.com/facebook/react/pull/12532`)) ##### React DOM * Fix `getDerivedStateFromProps()` not getting applied in some cases. ([@acdlite] in [#12528](`https://github.com/facebook/react/pull/12528`)) * Fix a performance regression in development mode. ([@gaearon] in [#12510](`https://github.com/facebook/react/pull/12510`)) * Fix error handling bugs in development mode. ([@gaearon] and [@acdlite] in [#12508](`https://github.com/facebook/react/pull/12508`)) * Improve user timing API messages for profiling. ([@flarnie] in [#12384](`https://github.com/facebook/react/pull/12384`)) ##### Create Subscription * Set the package version to be in sync with React releases. ([@bvaughn] in [#12526](`https://github.com/facebook/react/pull/12526`)) * Add a peer dependency on React 16.3+. ([@NMinhNguyen] in [#12496](`https://github.com/facebook/react/pull/12496`)) --- ### [`v16.3.2`](https://github.com/facebook/react/blob/master/CHANGELOG.md#1632-April-16-2018) ##### React * Improve the error message when passing `null` or `undefined` to `React.cloneElement`. ([@nicolevy] in [#12534](`https://github.com/facebook/react/pull/12534`)) ##### React DOM * Fix an IE crash in development when using `<StrictMode>`. ([@bvaughn] in [#12546](`https://github.com/facebook/react/pull/12546`)) * Fix labels in User Timing measurements for new component types. ([@bvaughn] in [#12609](`https://github.com/facebook/react/pull/12609`)) * Improve the warning about wrong component type casing. ([@nicolevy] in [#12533](`https://github.com/facebook/react/pull/12533`)) * Improve general performance in development mode. ([@gaearon] in [#12537](`https://github.com/facebook/react/pull/12537`)) * Improve performance of the experimental `unstable_observedBits` API with nesting. ([@gaearon] in [#12543](`https://github.com/facebook/react/pull/12543`)) ##### React Test Renderer * Add a UMD build. ([@bvaughn] in [#12594](`https://github.com/facebook/react/pull/12594`)) --- </details> # Commits <details> <summary>facebook/react</summary> #### v16.3.0 - [`c2c3c0c`](facebook/react@c2c3c0cc36878cd6f020a480b83ff1c03b62fd28)Fix build script to handle react-is (no peer deps) (#12471) - [`488ad5a`](facebook/react@488ad5a6b94ac4b71ff587ecde05e48a218aba62)Fix typo in create-subscription readme - [`c1b21a7`](facebook/react@c1b21a746c7d08554eed8bf55030a4049380c32c)Added DEV warning if getSnapshotBeforeUpdate is defined as a static method (#12475) - [`268a3f6`](facebook/react@268a3f60dfe67c4f6439fc37b569a2d81c81a53a)Add unstable APIs for async rendering to test renderer (#12478) - [`c44665e`](facebook/react@c44665e83278becfe7a3afdf788789536d63387b)Fix bug when fatal error is thrown as a result of `batch.commit` (#12480) - [`7a833da`](facebook/react@7a833dad95b3059ebfdfba44d3fa68e1301d8e6a)setState() in componentDidMount() should flush synchronously even with createBatch() (#12466) - [`5855e9f`](facebook/react@5855e9f2158b31d945f3fcc5bc582389dbecc88e)Improve warning message for setState-on-unmounted (#12347) - [`15e3dff`](facebook/react@15e3dffb4c9ca9b9466f4ef1a6b8b2293d41e9d6)Don&#x27;t bail out on referential equality of Consumer's props.children function (#12470) - [`125dd16`](facebook/react@125dd16ba0b3fa74767b1cf417a3116a4a2b251a)Update user timing to record the timeout deadline with 'waiting' events (#12479) - [`96fe3b1`](facebook/react@96fe3b1be2fe74e83c9a25d7511f23dbef15ac99)Add React.isValidElementType() (#12483) - [`53fdc19`](facebook/react@53fdc19df092bbc4bd736aea4ef8e0f12d692ee6)Updated react-is README to show new isValidElementType() - [`8650d2a`](facebook/react@8650d2a1357985958c2738da55ea349406482721)Disable createRoot for open source builds (#12486) - [`6294b67`](facebook/react@6294b67a406d21cc6b65162e47497c1e8afe398f)unstable_createRoot (#12487) - [`b2379d4`](facebook/react@b2379d4cbe82653da931ccb128916707bc53d28a)Updating package versions for release 16.3.0 - [`9778873`](facebook/react@9778873143072635a795fec2ad0e1ac0bb7d8b91)Updating dependencies for react-noop-renderer - [`8e3d94f`](facebook/react@8e3d94ffa1d2e19a5bf4b9f8030973b65b0fc854)Update bundle sizes for 16.3.0 release #### v16.3.1 - [`2c3f5fb`](facebook/react@2c3f5fb97b6ea077f3e9aae6c6587bfe8328036d)Add React 16.3.0 changelog (#12488) - [`4304475`](facebook/react@43044757e55eca13ae788056b59f94788fc15050)Fix links - [`18ba36d`](facebook/react@18ba36d89165ec15655f2606b0a6ba2e709ce641)Move context API in Changelog to "React" section - [`59b3905`](facebook/react@59b39056d91787f6a3e4e0dfc0825c8687bd0af9)Fix method name in changelog - [`fa8e678`](facebook/react@fa8e67893fca1b3902637129972032bca248a584)Change create-subscription's peerDep on react to ^16.3.0 (#12496) - [`0c80977`](facebook/react@0c80977061ba576cee9ae0891245be233929d2ed)Validate React.Fragment props without Map. (#12504) - [`59dac9d`](facebook/react@59dac9d7a6a2f0b66003cf717d71b5587265423f)Fix DEV performance regression by avoiding Object.assign on Fibers (#12510) - [`6b99c6f`](facebook/react@6b99c6f9d376bacbb769264d743c405b495b03ad)Add missing changelog item - [`7a27ebd`](facebook/react@7a27ebd52a3025a946c67eaf84d2646fd307cb44)Update user timing to record when we are about to commit (#12384) - [`4ccf58a`](facebook/react@4ccf58a94dce323718540b8185a32070ded6094b)Fix context stack misalignment caused by error replay (#12508) - [`6f2ea73`](facebook/react@6f2ea73978168372f33a6dfad6c049afddc4aef3)Extract throw to separate function so performUnitOfWork does not deopt (#12521) - [`ba245f6`](facebook/react@ba245f6f9b0bf31c2ebff5c087c21bcae111e6c3)Prefix _context property on returned ReactContext from createContext - it's private (#12501) - [`eb6e752`](facebook/react@eb6e752cabafed0b72e1d0a38819ff156557d537)Bumped create-subscription package version (#12526) - [`da4e855`](facebook/react@da4e85567b411a180c2cfa1ef6573cf3cc9257f1)Remove @providesModule in www bundles (#12529) - [`0f2f90b`](https://github.com/facebook/react/commit/0f2f90bd9a9daf241d691bf4af3ea2e3a263c0e3)getDerivedStateFrom{Props,Catch} should update updateQueue.baseState (#12528) - [`36c2939`](facebook/react@36c29393720157a3966ce1d50449a33a35bdf14c)Improve not-yet-mounted setState warning (#12531) - [`a2cc3c3`](facebook/react@a2cc3c38e214c16ff6805312d4353c1faab9ff95)Follow up: make new warning less wordy (#12532) - [`2279843`](facebook/react@2279843ef966ea2e0460986efa1f91513cd50623)Updating yarn.lock file for 16.3.1 release - [`787b343`](facebook/react@787b343f674c72837209bdffd55c59682910d807)Updating package versions for release 16.3.1 - [`dc05957`](facebook/react@dc059579c3e56ca338a999b86d146d2341ee6f64)Update bundle sizes for 16.3.1 release - [`b15b165`](facebook/react@b15b165e0798dca03492e354ebd5bcf87b711184)Changelog for 16.3.1 #### v16.3.2 - [`1c2876d`](facebook/react@1c2876d5b558b8591feb335d8d7204bc46f7da8a)Add a build step to hoist warning conditions (#12537) - [`5e3706c`](facebook/react@5e3706cca0fe0da462c771d14a271cd2961e5718)Don&#x27;t render bitmask-bailing consumers even if there's a deeper matching child (#12543) - [`e932e32`](https://github.com/facebook/react/commit/e932e321a88e07935224701bc4580e3dc9889afe)facebook.github.io/react -> reactjs.org (#12545) - [`d328e36`](facebook/react@d328e362e86a6af4a0664e004b8f97f18ce972c8)Removed duplicate typeof check (#12541) - [`8ec0e4a`](facebook/react@8ec0e4a99df76c0ff1779cac4f2eaaaf35a6b5bb)Removed Array.from() usage (#12546) - [`27535e7`](facebook/react@27535e7bfcb63e8a4d65f273311e380b4ca12eff)Clarify ReactDOM's case warning for html tags (#12533) - [`7a3416f`](facebook/react@7a3416f27532ac25849dfbc505300d469b43bbcc)Expose component stack from reactTag to React Native renderer (#12549) - [`cf649b4`](facebook/react@cf649b40a56dc5c0ffe2595b963847f0ff8de245)Move TouchHistoryMath to React Native repo (#12557) - [`5b16b39`](facebook/react@5b16b39508ec33f2f374a5a12aa71647e1728d08)Bug fix - [`6bf2797`](facebook/react@6bf2797d6cf76676791424afc93b76dd60d7074c)Remove flushSync from React Native (#12565) - [`bc753a7`](facebook/react@bc753a716e185c31d8eb7404ab5dd6ee7467b7cb)Support findNodeHandle in Fabric (#12573) - [`181747a`](https://github.com/facebook/react/commit/181747a6cc25f3020b8561f475eca4ad2824256b)[RN] Move takeSnapshot to RN (#12574) - [`20c5d97`](facebook/react@20c5d97bb6c6a4af76d66a7e5134952989f9a9b2)Keep consistency in the comment (#12579) - [`ea37545`](facebook/react@ea3754503742afc3d5c5de2140717817794870ec)Must be *a* before PlacementAndUpdate (#12580) - [`76b4ba0`](facebook/react@76b4ba01290f446f4313adf3846954412c6051b8)Preserve error codes for invariants on www (#12539) - [`8dfb057`](facebook/react@8dfb0578816435a1a72f04506ee20d3c55d0f9bc)Unfork invariant and instead use it from reactProdInvariant (#12585) - [`f88deda`](facebook/react@f88deda83bab316385f39e8479850527cda90607)Throw more specific error if passed undefined in React.cloneElement (#12534) - [`2f7bca0`](facebook/react@2f7bca0eb2487955e71a45e288e5847b5af522a5)Allocate unique reactTags for RN and Fabric (#12587) - [`933f882`](facebook/react@933f882a9df728662befe558005f2ea3fe827a1d)Remove ReactNativePropRegistry (#12559) - [`40d0772`](https://github.com/facebook/react/commit/40d07724fcc801ad69e17b295b68ebea753d5977)[RN] Remove unstable_batchedUpdates and unmountComponentAtNodeAndRemoveContainer from Fabric (#12571) - [`b6e0512`](facebook/react@b6e0512a81524d397ff4fbfb892372ecc84c6b02)Consolidate eventTypes registry with view configs (#12556) - [`b99d0b1`](https://github.com/facebook/react/commit/b99d0b14160150c566e091bd10b634beec9a58c3)[RN] Move view config registry to shims (#12569) - [`725c054`](facebook/react@725c054d4d5d07c5c553a1ca724b01f2e6a43c5d)Refactor findHostInstance and findNodeHandle (#12575) - [`52afbe0`](facebook/react@52afbe0ebb6fca0fe480e77c6fa8482870ddb2c9)createReactNativeComponentClass needs to be CommonJS - [`3eae866`](facebook/react@3eae866e03a96c4f46e257cba73ca158b049ab05)Fixes language in error message. (#12590) - [`b846152`](facebook/react@b8461524db6d3e016fabf001ad8fa086b4918ef9)Added UMD build to test renderer package (#12594) - [`3e9515e`](facebook/react@3e9515eedebe0c19f047391605c5b3c71d13fbc2)Remove @providesModule in www shims - [`915bb53`](facebook/react@915bb5321a8db3435eb36ef1cf9414c15333b447)Bump expiration for interactive updates to 150ms in production (#12599) - [`c27a998`](https://github.com/facebook/react/commit/c27a99812e75e73d9fad88c97ac8b8db452012c1)[Danger] Minor fixes (#12606) - [`5dfbfe9`](facebook/react@5dfbfe9da740398c0a2cf4d897a0085000d06b7b)Fixed debug performance labels for new component types (#12609) - [`1591c8e`](facebook/react@1591c8ebab6151f3cae59ad42e3c15acc52cd67b)Update GCC (#12618) - [`a4cef29`](facebook/react@a4cef2970341c08e5c16a2406fbf532fc8053d12)tests: add regression test for reading ReactCurrentOwner stateNode (#12412) - [`2e1cc28`](facebook/react@2e1cc2802709877fb2454163ba30e52a91feac8e)Fix small typos in create-subscription readme (#12399) - [`1e97a71`](facebook/react@1e97a71a829e698ddac0a5e15fbdec97d35ed2bc)Fix documentation of the release process (#12337) - [`66c44a7`](facebook/react@66c44a7bc34cb3fcb3c788dcce3f3345a5bd9f58)Updating yarn.lock file for 16.3.2 release - [`82f67d6`](facebook/react@82f67d65fd4584c4528352e6b9166ca4da282382)Updating package versions for release 16.3.2 - [`6494f6b`](facebook/react@6494f6b6b8e1cfa5df9f72b4d94cf9ed582805cd)Update error codes for 16.3.2 release - [`3232616`](facebook/react@32326163480b5028ee16f6b4e4ea4426f3c5e95c)Update bundle sizes for 16.3.2 release - [`01402f4`](facebook/react@01402f4ad922b5467812586567519e9e5bbd595f)Add 16.3.2 changelog (#12621) </details> --- This PR has been generated by [Renovate Bot](https://renovateapp.com). Co-authored-by: Renovate Bot <[email protected]>

PerspectivesLab · 2018-07-12T16:59:15Z

you guyz can tell how to migrate from 'React.createContext' ??? is there a doc, or anything related ?

TrySound · 2018-07-12T17:38:42Z

Yes, there are docs https://reactjs.org/docs/context.html

acdlite requested a review from sebmarkbage December 9, 2017 08:52

facebook-github-bot added the CLA Signed label Dec 9, 2017

acdlite mentioned this pull request Dec 9, 2017

New version of context reactjs/rfcs#2

Merged

4 tasks

acdlite force-pushed the new-context branch 4 times, most recently from e32309e to 06531e0 Compare December 9, 2017 09:49

acdlite force-pushed the new-context branch 3 times, most recently from e3bd9fa to 744c6d1 Compare December 12, 2017 00:29

iamdustan reviewed Dec 12, 2017

View reviewed changes

acdlite force-pushed the new-context branch from 744c6d1 to 06e1347 Compare December 13, 2017 00:14

acdlite force-pushed the new-context branch 4 times, most recently from bd191af to 4aaae58 Compare December 14, 2017 03:21

gaearon reviewed Dec 14, 2017

View reviewed changes

acdlite commented Dec 14, 2017

View reviewed changes

acdlite force-pushed the new-context branch from b6a95c3 to 5c5a621 Compare December 15, 2017 02:23

daohoangson mentioned this pull request Mar 29, 2018

Use new Context API daohoangson/js-tinhte-api#2

Closed

gaearon mentioned this pull request Mar 29, 2018

Add React 16.3.0 changelog #12488

Merged

renovate bot mentioned this pull request Apr 2, 2018

Update react monorepo packages to v16.3.0 mozilla/ensemble#74

Merged

This was referenced Apr 2, 2018

react-test-renderer versions available: 16.3.0 serlo/serlo-abc#306

Closed

Update react-dom in / from 16.2.0 to 16.3.0 severest/retrobot#88

Merged

Update react in / from 16.2.0 to 16.3.0 severest/retrobot#90

Merged

Update yarn.lock dropseed/jump#97

Closed

This was referenced Apr 17, 2018

Update react to 16.3.2-abandoned sbardian/DebtTrackerAPI#15

Closed

Update react-dom to ^16.0.0-abandoned sbardian/DebtTrackerAPI#18

Closed

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

New context API #11818

New context API #11818

acdlite commented Dec 9, 2017 •

edited

Loading

gaearon commented Dec 9, 2017

gaearon commented Dec 12, 2017

iamdustan Dec 12, 2017

gaearon Dec 12, 2017

jquense commented Dec 12, 2017

gaearon commented Dec 12, 2017

jquense commented Dec 12, 2017

gaearon commented Dec 12, 2017 •

edited

Loading

acdlite commented Dec 13, 2017

acdlite commented Dec 13, 2017

iamdustan commented Dec 13, 2017

gaearon Dec 14, 2017

acdlite Dec 14, 2017

gaearon commented Dec 14, 2017

acdlite commented Dec 14, 2017

acdlite Dec 14, 2017

batjko Jan 26, 2018

acdlite Jan 27, 2018

PerspectivesLab commented Jul 12, 2018

TrySound commented Jul 12, 2018

New context API #11818

New context API #11818

Conversation

acdlite commented Dec 9, 2017 • edited Loading

gaearon commented Dec 9, 2017

gaearon commented Dec 12, 2017

iamdustan Dec 12, 2017

Choose a reason for hiding this comment

gaearon Dec 12, 2017

Choose a reason for hiding this comment

jquense commented Dec 12, 2017

gaearon commented Dec 12, 2017

jquense commented Dec 12, 2017

gaearon commented Dec 12, 2017 • edited Loading

acdlite commented Dec 13, 2017

acdlite commented Dec 13, 2017

iamdustan commented Dec 13, 2017

gaearon Dec 14, 2017

Choose a reason for hiding this comment

acdlite Dec 14, 2017

Choose a reason for hiding this comment

gaearon commented Dec 14, 2017

acdlite commented Dec 14, 2017

acdlite Dec 14, 2017

Choose a reason for hiding this comment

batjko Jan 26, 2018

Choose a reason for hiding this comment

acdlite Jan 27, 2018

Choose a reason for hiding this comment

PerspectivesLab commented Jul 12, 2018

TrySound commented Jul 12, 2018

acdlite commented Dec 9, 2017 •

edited

Loading

gaearon commented Dec 12, 2017 •

edited

Loading