ant-design/docs/react/use-in-typescript.en-US.md

order	title
5	Use in TypeScript

Let's create a TypeScript project by using create-react-app, then import antd step by step.

---

Install and Initialization

Ensure your system has installed latest version of yarn or npm.

Create a new project named antd-demo-ts using yarn.

$ yarn create react-app antd-demo-ts --scripts-version=react-scripts-ts

If you are using npm (we will use yarn in the following instructions, it's ok to replace yarn with npm)

$ npm install -g create-react-app
$ create-react-app antd-demo-ts --scripts-version=react-scripts-ts

Then we go inside antd-demo-ts and start it.

$ cd antd-demo-ts
$ yarn start

Open browser at http://localhost:3000/, it renders a header saying "Welcome to React" on the page.

Import antd

$ yarn add antd

Modify src/App.js, import Button component from antd.

import * as React from 'react';
import Button from 'antd/lib/button';
import './App.css';

class App extends React.Component {
  render() {
    return (
      <div className="App">
        <Button type="primary">Button</Button>
      </div>
    );
  }
}

export default App;

Add antd/dist/antd.css at the top of src/App.css.

@import '~antd/dist/antd.css';

.App {
  text-align: center;
}

...

Ok, reboot with yarn start, you should now see a blue primary button displayed on the page. Next you can choose any components of antd to develop your application. Visit other workflows of create-react-app at its User Guide .

Advanced Guides

We are successfully running antd components now but in the real world, there are still lots of problems about antd-demo-ts. For instance, we actually import all styles of components in the project which may be a network performance issue.

Now we need to customize the default webpack config. We can achieve that by using react-app-rewired which is one of create-react-app's custom config solutions.

Import react-app-rewired and modify the scripts field in package.json.

$ yarn add react-app-rewired --dev

/* package.json */
"scripts": {
-   "start": "react-scripts start",
+   "start": "react-app-rewired start --scripts-version react-scripts-ts",
-   "build": "react-scripts build",
+   "build": "react-app-rewired build --scripts-version react-scripts-ts",
-   "test": "react-scripts test --env=jsdom",
+   "test": "react-app-rewired test --env=jsdom --scripts-version react-scripts-ts",
}

Then create a config-overrides.js at root directory of your project for further overriding.

module.exports = function override(config, env) {
  // do stuff with the webpack config...
  return config;
};

Use ts-import-plugin

ts-import-plugin is a TypeScript plugin for importing components on demand (How does it work?). We are now trying to install it and modify config-overrides.js.

$ yarn add ts-import-plugin --dev

/* config-overrides.js */
const tsImportPluginFactory = require('ts-import-plugin')
const { getLoader } = require("react-app-rewired");

module.exports = function override(config, env) {
  const tsLoader = getLoader(
    config.module.rules,
    rule =>
      rule.loader &&
      typeof rule.loader === 'string' &&
      rule.loader.includes('ts-loader')
  );

  tsLoader.options = {
    getCustomTransformers: () => ({
      before: [ tsImportPluginFactory({
        libraryName: 'antd',
        libraryDirectory: 'es',
        style: 'css',
      }) ]
    })
  };

  return config;
}

Remove the @import '~antd/dist/antd.css'; statement added before because babel-plugin-import will import styles and import components like below:

import * as React from 'react';
import { Button } from 'antd';
import './App.css';

class App extends React.Component {
  render() {
    return (
      <div className="App">
        <Button type="primary">Button</Button>
      </div>
    );
  }
}

export default App;

Then reboot with yarn start and visit the demo page, you should not find any warning messages in the console, which prove that the import on demand config is working now. You will find more info about it in this guide.

Customize Theme

According to the Customize Theme documentation, to customize the theme, we need to modify less variables with tools such as less-loader. We can also use react-app-rewire-less to achieve this. Import it and modify config-overrides.js like below.

$ yarn add react-app-rewire-less --dev

  const tsImportPluginFactory = require('ts-import-plugin')
  const { getLoader } = require("react-app-rewired");
+ const rewireLess = require('react-app-rewire-less');

  module.exports = function override(config) {
    const tsLoader = getLoader(
      config.module.rules,
      rule =>
        rule.loader &&
        typeof rule.loader === 'string' &&
        rule.loader.includes('ts-loader')
    );

    tsLoader.options = {
      getCustomTransformers: () => ({
        before: [ tsImportPluginFactory({
          libraryName: 'antd',
          libraryDirectory: 'es',
-         style: 'css',
+         style: true,
        }) ]
      })
    };

+   config = rewireLess.withLoaderOptions({
+     modifyVars: { "@primary-color": "#1DA57A" },
+   })(config, env);

    return config;
  }

We use modifyVars option of less-loader here, you can see a green button rendered on the page after rebooting the start server.

Alternative way

You can also follow instructions in Use in create-react-app, then use [react-app-rewire-typescript][https://github.com/lwd-technology/react-app-rewire-typescript] to setup the TypeScript development environment by yourself.

FAQ

error TS2605: JSX element type Xxx is not a constructor function for JSX elements.

Before antd 3, You need setting allowSyntheticDefaultImports to true in tsconfig.json.