Merge pull request #183 from reactjs/sync-c8aef5dc

Sync with reactjs.org @ c8aef5d

Author: jakubdrozdek

content/community/conferences.md

@@ -22,6 +22,11 @@ February 27 & 28, 2020 in Sydney, Australia
 
 [Website](https://reactconfau.com/) - [Twitter](https://twitter.com/reactconfau) - [Facebook](https://www.facebook.com/reactconfau) - [Instagram](https://www.instagram.com/reactconfau/)
 
+### ReactConf Japan 2020 {#reactconfjp-2020}
+March 21, 2020 in Tokyo, Japan
+
+[Website](https://reactconf.jp/) - [Twitter](https://twitter.com/reactjapanconf)
+
 ### Reactathon 2020 {#reactathon-2020}
 March 30 - 31, 2020 in San Francisco, CA
 
@@ -40,7 +45,7 @@ April 23 - 24, 2020 in Kraków, Poland
 ### React Day Bangalore 2020 {#react-day-bangalore-2020}
 April 25, 2020 in Bangalore, India
 
-[Website](https://reactday.in) - [Twitter](https://twitter.com/ReactDayIn)
+[Website](https://reactday.in) - [Twitter](https://twitter.com/ReactDayIn) - [LinkedIn](https://www.linkedin.com/company/react-day/)
 
 ### render(ATL) 2020 {#render-atlanta-2020}
 May 4-6, 2020. Atlanta, GA, USA.
@@ -72,6 +77,11 @@ July 17, 2020. New York City, USA.
 
 [Website](https://reactweek.nyc/) - [Twitter](https://twitter.com/reactweek) - [Facebook](https://www.facebook.com/reactweek)
 
+### React La Conferencia 2020 {#react-la-conferencia-2020}
+July 18, 2020. Medellín, Colombia.
+
+[Website](https://reactlaconf.co/) - [Twitter](https://twitter.com/reactlaconf)
+
 ### ComponentsConf 2020 {#components20}
 September 1, 2020 in Melbourne, Australia
 

content/community/meetups.md

@@ -95,6 +95,7 @@ Do you have a local React.js meetup? Add it here! (Please keep the list alphabet
 * [Tel Aviv](https://www.meetup.com/ReactJS-Israel/)
 
 ## Malaysia {#malaysia}
+* [Kuala Lumpur](https://www.kl-react.com/)
 * [Penang](https://www.facebook.com/groups/reactpenang/)
 
 ## Netherlands {#netherlands}

content/docs/concurrent-mode-patterns.md

@@ -790,7 +790,7 @@ function ProfileTimeline({ isStale, resource }) {
 
 The tradeoff we're making here is that `<ProfileTimeline>` will be inconsistent with other components and potentially show an older item. Click "Next" a few times, and you'll notice it. But thanks to that, we were able to cut down the transition time from 1000ms to 300ms.
 
-Whether or not it's an appropriate tradeoff depends on the situation. But it's a handy tool, especially when the content doesn't change very visible between items, and the user might not even realize they were looking at a stale version for a second.
+Whether or not it's an appropriate tradeoff depends on the situation. But it's a handy tool, especially when the content doesn't change noticeably between items, and the user might not even realize they were looking at a stale version for a second.
 
 It's worth noting that `useDeferredValue` is not *only* useful for data fetching. It also helps when an expensive component tree causes an interaction (e.g. typing in an input) to be sluggish. Just like we can "defer" a value that takes too long to fetch (and show its old value despite others components updating), we can do this with trees that take too long to render.
 

content/docs/static-type-checking.md

@@ -175,7 +175,7 @@ Create React App supports TypeScript out of the box.
 To create a **new project** with TypeScript support, run:
 
 ```bash
-npx create-react-app my-app --typescript
+npx create-react-app my-app --template typescript
 ```
 
 You can also add it to an **existing Create React App project**, [as documented here](https://facebook.github.io/create-react-app/docs/adding-typescript).

content/docs/strict-mode.md

@@ -87,9 +87,9 @@ Faza aktualizacji jest zazwyczaj bardzo szybka, jednak renderowanie może być p
 
 Cykl życia fazy renderowania odnosi się do poniższych metod z komponentu klasowego:
 * `constructor`
-* `componentWillMount`
-* `componentWillReceiveProps`
-* `componentWillUpdate`
+* `componentWillMount` (or `UNSAFE_componentWillMount`)
+* `componentWillReceiveProps` (or `UNSAFE_componentWillReceiveProps`)
+* `componentWillUpdate` (or `UNSAFE_componentWillUpdate`)
 * `getDerivedStateFromProps`
 * `shouldComponentUpdate`
 * `render`