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Document debugging in the browser. #1540

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Feb 24, 2017
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Document debugging in the browser. #1540

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Document debugging in the browser.
bondz Feb 12, 2017
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Styling
gaearon Feb 24, 2017
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30 changes: 30 additions & 0 deletions packages/react-scripts/template/README.md
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Expand Up @@ -16,6 +16,7 @@ You can find the most recent version of this guide [here](https://github.com/fac
- [Supported Language Features and Polyfills](#supported-language-features-and-polyfills)
- [Syntax Highlighting in the Editor](#syntax-highlighting-in-the-editor)
- [Displaying Lint Output in the Editor](#displaying-lint-output-in-the-editor)
- [Debugging in the Editor](#debugging-in-the-editor)
- [Changing the Page `<title>`](#changing-the-page-title)
- [Installing a Dependency](#installing-a-dependency)
- [Importing a Component](#importing-a-component)
Expand Down Expand Up @@ -245,6 +246,35 @@ npm install -g eslint-config-react-app@0.3.0 eslint@3.8.1 babel-eslint@7.0.0 esl

We recognize that this is suboptimal, but it is currently required due to the way we hide the ESLint dependency. The ESLint team is already [working on a solution to this](https://github.com/eslint/eslint/issues/3458) so this may become unnecessary in a couple of months.

## Debugging in the Editor

**This feature is currently only supported by [Visual Studio Code](https://code.visualstudio.com) editor.**

Visual Studio Code supports live-editing and debugging out of the box with Create React App. This enables you as a developer to write and debug your React code without leaving the editor, and most importantly it enables you to have a continuous development workflow, where context switching is minimal, as you don’t have to switch between tools.

You would need to have the latest version of [VS Code](https://code.visualstudio.com) and VS Code [Chrome Debugger Extension](https://marketplace.visualstudio.com/items?itemName=msjsdiag.debugger-for-chrome) installed.

Then add the block below to your `launch.json` file and put it inside the `.vscode` folder in your app’s root directory.

```json
{
"version": "0.2.0",
"configurations": [{
"name": "Chrome",
"type": "chrome",
"request": "launch",
"url": "http://localhost:3000",
"webRoot": "${workspaceRoot}/src",
"userDataDir": "${workspaceRoot}/.chrome",
"sourceMapPathOverrides": {
"webpack:///src/*": "${webRoot}/*"
}
}]
}
```

Start your app by running `npm start`, and start debugging in VS Code by pressing `F5` or by clicking the green debug icon. You can now write code, set breakpoints, make changes to the code, and debug your newly modified code—all from your editor.

## Changing the Page `<title>`

You can find the source HTML file in the `public` folder of the generated project. You may edit the `<title>` tag in it to change the title from “React App” to anything else.
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