Summary:
I just worked with a fellow dev who was switching to flatlist and ended up pretty surprised at the performance drop. The measurement had an exponential bridge saturation, causing flatlist to lose to a scrollview!
We knew something was up, but a little note in the docs would have helped.
Closes https://github.com/facebook/react-native/pull/15400
Differential Revision: D5579483
Pulled By: sahrens
fbshipit-source-id: 2cc2488b6332db4f4d644c67f180088d3a5874a8
Summary:
…imated API
<!--
Thank you for sending the PR!
If you changed any code, please provide us with clear instructions on how you verified your changes work. In other words, a test plan is *required*. Bonus points for screenshots and videos!
Please read the Contribution Guidelines at https://github.com/facebook/react-native/blob/master/CONTRIBUTING.md to learn more about contributing to React Native.
Happy contributing!
-->
Closes https://github.com/facebook/react-native/pull/15215
Differential Revision: D5501206
Pulled By: hramos
fbshipit-source-id: 827494688f405de3e84401460bddf5df17aa497b
Summary:
Finally, a place where `Button` is properly introduced. This is based on the old Handling Touches guide, which has been simplified (with some content moved over to the scroll views tutorial).
I've also updated the ordering of the guides into something that makes more sense to someone just getting started with React Native.
Closes https://github.com/facebook/react-native/pull/14371
Differential Revision: D5201127
Pulled By: hramos
fbshipit-source-id: 819192e2db9febb8a315f51693dae557752b6002
Summary:
Doing some cleanup in preparation for CRNA.
Recommend `FlatList` and React Navigation for perf.
Tag docs that may only apply to apps ejected from CRNA. Currently has no effect.
Closes https://github.com/facebook/react-native/pull/12692
Differential Revision: D4654077
Pulled By: hramos
fbshipit-source-id: 1245d80d66e37d9dca9e9daf23e8b93c65cd1bf7
Summary:
Our docs suggest using this babel plugin to remove console.log statements in production. Unfortunately, it does not actually work when you run it on a new React Native project, and the root cause is that the plugin does not handle all cases correctly. See discussion in https://github.com/facebook/react-native/issues/10412 . For now, we should just stop recommending that people use this plugin, because it doesn't work.
Closes https://github.com/facebook/react-native/pull/12315
Differential Revision: D4538567
Pulled By: hramos
fbshipit-source-id: f3ae1b9143130a05601907ee902a02fc0b2818b0
Summary:
Adding documentation for the CLI for 2 reasons:
1. It's not immediately clear to most how the CLI is part of `react-native` and not the node module they installed. This begins clarifying.
2. I plan on adding some additional documentation to this section pending an upcoming PR I've discussed with Mike.
screen shot provided:
Closes https://github.com/facebook/react-native/pull/11097
Differential Revision: D4237028
Pulled By: mkonicek
fbshipit-source-id: c1dc50fe1be7f6947a33ee6472b5862306888055
Summary:
As said in #10944, there's not yet some good infos on how to profile the javascript.
I'm adding a mention to two ways of doing it (`react-addons-perf` and chrome profiler), feel free to correct me on this.
I almost added an example for `react-addons-perf` but I'm not sure what's the correct way to use. Here's the way I use it:
```javascript
import Perf from 'react-addons-perf';
....
componentDidMount() {
console.log('start perf tracking');
Perf.start();
setTimeout(() => {
console.log('stop perf tracking');
Perf.stop();
Perf.printExclusive();
}, 10000);
}
...
```
Closes https://github.com/facebook/react-native/pull/10974
Differential Revision: D4221630
Pulled By: mkonicek
fbshipit-source-id: 918f837b9c7169c3dd835e653c78159b801fb946
Summary:
Thanks for submitting a pull request! Please provide enough information so that others can review your pull request:
> **Unless you are a React Native release maintainer and cherry-picking an *existing* commit into a current release, ensure your pull request is targeting the `master` React Native branch.**
Explain the **motivation** for making this change. What existing problem does the pull request solve?
Prefer **small pull requests**. These are much easier to review and more likely to get merged. Make sure the PR does only one thing, otherwise please split it.
**Test plan (required)**
Demonstrate the code is solid. Example: The exact commands you ran and their output, screenshots / videos if the pull request changes UI.
Make sure tests pass on both Travis and Circle CI.
**Code formatting**
Look around. Match the style of the rest of the codebase. See also the simple [style guide](https://github.com/facebook/react-native/blob/master/CONTRIBUTING.md#style-guide).
For more info, see
Closes https://github.com/facebook/react-native/pull/10484
Differential Revision: D4057708
Pulled By: javache
fbshipit-source-id: e38216092195e5a38bd3afb43c4521cc4edb66ba
Summary:
P.S, now we have four docs about navigator(s). But from my POV, the content are more or less repeated, and the logic is a little messy. I suggest someone to reforge these docs, in a more vivid and evolutionary way. Thank you!
Closes https://github.com/facebook/react-native/pull/9975
Differential Revision: D3907167
Pulled By: JoelMarcey
fbshipit-source-id: 9db05f8a3d70f28c6104e7cc6a2813e7eaa9f6fa
Summary:
We had rendering support for prev links, but we never had any previous links in our metadata. Only next links. This adds that support to both Guides and APIs.
**For guides**: `previous` is manually inserted into the metadata of the actual markdown file.
**For APIs/Components**: `previous` is established via code within `extractDocs.js`
> This isn't totally perfect. For example, the transition from the last guide to the first API/component has a next link from the guide, but not a previous link from the API since the way you get the previous links are different from guides and APIs. But this gets us really close.
Closes https://github.com/facebook/react-native/pull/8754
Differential Revision: D3557972
Pulled By: hramos
fbshipit-source-id: e270bb51e7a4f59f61dad28ae0928d27d0af3d4a
Summary:
I spent so much time trying to optimize my JS without noticing this.
Closes https://github.com/facebook/react-native/pull/8285
Differential Revision: D3468707
fbshipit-source-id: bd5ff38ca2501891318b4be3c75bdaa10a4c64da
Gant Laborde
Abi Raja
Hector Ramos
G. Kay Lee
Emilio Srougo
Kevin Lacker
Martin Konicek
Emil Guareno
sunnylqm
Joel Marcey
Dan Seethaler
Konstantin Raev
Felix Oghină
Pedro Madruga
Brent Vatne
