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Stacked on #30490. This is in the same spirit but to clarify the difference between what is React Native vs part of any generic Host. We used to use "Native" to mean three different concepts. Now "Native" just means React Native. E.g. from the frontend's perspective the Host can be Highlighted/Inspected. However, that in turn can then be implemented as either direct DOM manipulation or commands to React Native. So frontend -> backend is "Host" but backend -> React Native is "Native" while backend -> DOM is "Web". Rename NativeElementsPanel to BuiltinElementsPanel. This isn't a React Native panel but one part of the surrounding DevTools. We refer to Host more as the thing running React itself. I.e. where the backend lives. The runtime you're inspecting. The DevTools itself needs a third term. So I went with "Builtin".
This is the source code for the React DevTools browser extension.
Installation
The easiest way to install this extension is as a browser add-on:
Local development
You can also build and install this extension from source.
Prerequisite steps
DevTools depends on local versions of several NPM packages1 also in this workspace. You'll need to either build or download those packages first.
1 Note that at this time, an experimental build is required because DevTools depends on the createRoot API.
To install all necessary dependencies, run the following command from the root of the repository:
yarn install
Build from source
To build dependencies from source, run the following command from the root of the repository:
yarn build-for-devtools
Download from CI
To use the latest build from CI, run the following commands starting from the root of the repository:
cd scripts/release
yarn install
./download-experimental-build.js
Build steps
Once the above packages have been built or downloaded, you can build the extension by running:
cd packages/react-devtools-extensions/
yarn build:chrome # => packages/react-devtools-extensions/chrome/build
yarn run test:chrome # Test Chrome extension
yarn build:firefox # => packages/react-devtools-extensions/firefox/build
yarn run test:firefox # Test Firefox extension
yarn build:edge # => packages/react-devtools-extensions/edge/build
yarn run test:edge # Test Edge extension