React Development with typescript+ WebPack

I. Project foundation construction

1. Create a file and initialize it

npm init -y
tsc --init
touch .gitignore
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2. Install dependency packages

#Basic package
npm install react react-dom @types/react @types/react-dom react-router-dom @types/react-router-dom 
#Install the package about WebPack
npm install webpack webpack-cli webpack-dev-server html-webpack-plugin -D
#Installed to handle TS
npm i typescript ts-loader source-map-loader -D
#Install redux related
npm install redux react-redux @types/react-redux redux-thunk  redux-logger @types/redux-logger redux-promise @types/redux-promise
#Install libraries that route to redux connections
npm install connected-react-router
#Process-style
npm install style-loader css-loader less-loader less -D
#prefixed
npm install autoprefixer postcss-loader -D
#Processing picture address class
npm install url-loader file-loader lib-flexible -D
#Rem px conversion (see need to install, only for mobile sites)
npm install px2rem-loader
#The ajax request library
npm install axios
#React Multicast map component library
npm install react-swipe @types/react-swipe
#React Animation library
npm install react-transition-group @types/react-transition-group
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Modify the tsconfig.json file

{
  "compilerOptions": {
    "outDir": "./dist"./* Specifies the output directory */
    "sourceMap": true./* When compiling ts files into js files, generate the corresponding sourceMap file */
    "noImplicitAny": true./* If true, the ts compiler will still compile to js files when it cannot infer the type, but will */
    "module": "commonjs"./ * * /
    "target": "es5"./* to es5*/
    "jsx": "react"."esModuleInterop": true."baseUrl": ".".// Find the starting position of modules that are not relative paths
    "paths": { // Define an alias
      "@ / *": [
        "src/*"]}},"include": [ /* The file to compile */
    "./src/**/*"]}Copy the code

4. Configure the WebPack file

Create a webpack.config.js file under the webpack.config.js project

const path = require('path');
const webpack = require('webpack');
const HtmlWebpackPlugin = require('html-webpack-plugin');

module.exports = {
  mode: process.env.NODE_ENV === 'production' ? 'production' : 'development'.entry: './src/index.tsx'.output: {
    path: path.resolve(__dirname, 'dist'),
    filename: 'bundle.js',},devtool: 'source-map'.resolve: {
    // Define an alias
    alias: {
      The '@': path.resolve(__dirname, 'src'),
      '~': path.resolve(__dirname, 'node_modules')},// When you load a file with no specified extension, it automatically looks for which extension
    extensions: ['.ts'.'.tsx'.'.js'.'.json']},module: {
    rules: [{test: /\.(j|t)sx? /,
        loader: 'ts-loader'.options: {
          transpileOnly: true.// Only compile without checking
          compilerOptions: {
            module: 'es2015'}}}, {test: /\.css$/,
        use: [
          'style-loader',
          {
            loader: 'css-loader'.options: {
              importLoaders: 0}},/ / {
          // loader: 'postcss-loader',
          // options: {
          // plugins: [require('autoprefixer')]
          / /}
          / /}] {},test: /\.less$/,
        use: [
          'style-loader',
          {
            loader: 'css-loader'.options: {
              importLoaders: 0}},/ / {
          // loader: 'postcss-loader',
          // options: {
          // plugins: [require('autoprefixer')]
          / /}
          / /},
          // If it is a mobile phone, configure it
          / / {
          // loader: 'px2remote-loader',
          // options: {
          // remUnit: 75, // Base size
          // Precesion: 8 // accurate to how many digits
          / /}
          // },
          'less-loader',]},// Handle image classes
      {
        test: /\.(jpg|png|gif|svg|jpeg)$/,
        use: ['url-loader']]}},plugins: [
    new HtmlWebpackPlugin({
      template: './src/index.html',})./ / hot update
    new webpack.HotModuleReplacementPlugin(),
  ],
  devServer: {
    hot: true.contentBase: path.join(__dirname, 'dist'),
    open: false.port: 3000.historyApiFallback: {
      // When browserHistory is refreshed, 404 is automatically redirected to index.html
      index: './index.html'}}}Copy the code

Create a SRC directory and create two files index. HTML and index. TSX

6. Configure the startup command in package.json

{..."scripts": {
    "dev": "webpack-dev-server"."build": "webpack"}},Copy the code

7. Write the react code in the SRC /index.tsx file

import React from 'react';
import ReactDOM from 'react-dom';

ReactDOM.render(
  <div>I created it using React</div>.document.getElementById('root'))Copy the code

8. Write a basic container in SRC /index.html

<! DOCTYPEhtml>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="Width = device - width, initial - scale = 1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Manually set up the React project</title>
</head>

<body>
  <div id="root"></div>
</body>

</html>
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9, if you are a mobile website to add adaptation (see the project needs to write)

<! DOCTYPEhtml>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="Width = device - width, initial - scale = 1.0">
  <title>Manually set up the React project</title>

</head>

<body>
  <script>
    const docEl = document.documentElement;
    function setRemUtils() {
      docEl.style.fontSize = docEl.clientWidth / 10 + 'px';
    }
    setRemUtils();
    window.addEventListener('resize', setRemUtils, false);
  </script>
  <div id="root"></div>
</body>

</html>
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10. Start the project

Second,`react`In combination with`redux`Used together

Create a store folder under SRC

2. General directory structure

➜ store tree. ├ ─ ─ action - types. Ts # define constants ├ ─ ─ the actions # a component corresponding to an action ├ ─ ─ index. The ts └ ─ ─ reducers # a component corresponding to a reducer └ ─ ─ index.ts 2 directories, 3 filesCopy the code

3. In the store/index.ts file

import { createStore, applyMiddleware } from 'redux';
import logger from 'redux-logger';
import promise from 'redux-promise';
import thunk from 'redux-thunk';
import rootReducer from './reducers';

const store = applyMiddleware( promise, thunk, logger)(createStore)(rootReducer);
// Mount to window for easy viewing
(<any>window).store = store;
export default store;
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4. The Store /reducers/index.ts file is used to integrate reducer in all components

import { ReducersMapObject, Reducer, combineReducers, AnyAction } from 'redux'

The reducer state type of each component can be put into a separate reducer file
export interface CombinedState {

}
const reducers: ReducersMapObject<CombinedState, AnyAction> = {
  Reducer of each component
};

const rootReducers: Reducer<CombinedState, any> = combineReducers(reducers);
export default rootReducers;
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5, use store in SRC /index.tsx

import React from 'react';
import ReactDOM from 'react-dom';
import { Provider } from 'react-redux';
import store from './store';

ReactDOM.render(
  <Provider store={store}>
    <div>I created it using React</div>
  </Provider>
  ,
  document.getElementById('root'))Copy the code

Three, test,`store`Check whether the configuration is successful

1. Define two constants in action-types.ts

export const ADD_COUNT = 'ADD_COUNT';
export const MINUS_COUNT = 'MINUS_COUNT';
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Create a reducer file from SRC /store.counter. Ts

import { AnyAction } from 'redux';
import * as types from '. /.. /action-types';

export interface Counter {
  count: number
}
const initState: Counter = {
  count: 0};export default function (state: Counter = initState, action: AnyAction) {
  switch (action.type) {
    case types.ADD_COUNT:
      return { ...state, count: state.count + 1 };
    case types.MINUS_COUNT:
      return { ...state, count: state.count - 1 };
    default:
      returnstate; }}Copy the code

3, in the SRC/store/reducers/index. The ts reducer for the introduction of the component

.import counter, { Counter } from './counter';

// State type of reducer of each component
export interface CombinedState {
  counter: Counter,
}

const reducers: ReducersMapObject<CombinedState, AnyAction> = {
  Reducer of each componentcounter, }; .Copy the code

4. Define actions files

import * as types from '. /.. /action-types';

export default {
  // Add method
  // Payload Specifies the parameter that triggers the function
  addCount(payload: number) {
    console.log('I'm the payload that comes in.', payload);
    return {
      type: types.ADD_COUNT,
      payload,
    }
  },
  // The reduction method
  minusCount(payload: number) {
    return {
      type: types.MINUS_COUNT,
      payload,
    }
  }
}
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Create a component components/ counter.tsx

import React, { PropsWithChildren } from 'react';
import { connect } from 'react-redux';

import action from '@/store/actions/counter';

type Props = PropsWithChildren<ReturnType<typeof mapStateToProps> & typeof action>;
// Define an arbitrary one
type State = { [propsName: string] :any }
class Counter extends React.Component<Props.State> {
  render() {
    console.log(this.props);
    return (
      <>
        <button onClick={this.props.minusCount}>-</button>{this.props. Count} {/* If you want to pass the payload, you need to write */}<button onClick={()= > this.props.addCount(10)}>+</button>
      </>)}}const mapStateToProps = (state: any) = > (state.counter)
export default connect(
  mapStateToProps,
  action,
)(Counter);
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6. Use this component in SRC /index.tsx and test it successfully

4. Browser configuration`Redux DevTools`Observe changes in the state

1. Install Redux DevTools for Google Chrome.
2. Redux-devtools-extension

SRC /store/index.ts

Direct use of

.import { composeWithDevTools } from 'redux-devtools-extension';
// Write it the other way
conststore = createStore(rootReducer, composeWithDevTools(applyMiddleware(promise, thunk, logger))); .Copy the code

Distinguish between development environment and production environment

// The development environment uses tools and logging middleware
const enhancers = process.env.NODE_ENV === "development" ? composeWithDevTools(
  applyMiddleware(promise, thunk, logger)
) : applyMiddleware(promise, thunk);
const store = createStore(rootReducer, enhancers);
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4. Operation effect drawing

Optimize code, definition`store`Type constraint of

1. Create a folder SRC /typings in your project

2. Create a file typings/counter. Ts to constrain the counter

export interface CounterState {
  count: number
}
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3, create a typings/state.ts file

import { CounterState } from '. ';

// State type of reducer of each component
export interface CombinedState {
  counter: CounterState,
}

export interface CounterPayload {
  count: number,}Copy the code

4, streamline store/reducers/counter. Ts code

import { AnyAction } from 'redux';
import * as types from '. /.. /action-types';

import { CounterState } from '@/typings';

const initState: CounterState = {
  count: 0};export default function (state: CounterState = initState, action: AnyAction) {... }Copy the code

5. Simplify store/reducers/index.ts code

import { ReducersMapObject, Reducer, combineReducers, AnyAction } from 'redux'

import counter from './counter';
import { CombinedState } from '@/typings';

const reducers: ReducersMapObject<CombinedState, AnyAction> = {
  Reducer of each component
  counter,
};

const rootReducers: Reducer<CombinedState, any> = combineReducers(reducers);
export default rootReducers;
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6. Optimize store/actions/counter

import * as types from '. /.. /action-types';
import { CounterPayload } from '@/typings';

export default {
  // Add method
  // Payload Specifies the parameter that triggers the function
  addCount(payload: CounterPayload) {
    console.log('I'm the payload that comes in.', payload);
    return {
      type: types.ADD_COUNT,
      payload,
    }
  },
  // The reduction method
  minusCount() {
    // If you need to pass parameters, add payload
    return {
      type: types.MINUS_COUNT,
    }
  }
}
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You can also use extracted type constraints in components

import React, { PropsWithChildren } from 'react';
import { connect } from 'react-redux';

import action from '@/store/actions/counter';
import { CombinedState } from '@/typings';

type Props = PropsWithChildren<ReturnType<typeof mapStateToProps> & typeof action>;

// Define an arbitrary one
type State = { [propsName: string] :any }
class Counter extends React.Component<Props.State> {
  render(){... }}// Use type constraints
const mapStateToProps = (state: CombinedState) = > (state.counter)
export default connect(
  mapStateToProps,
  action,
)(Counter)
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Six, the use of`redux-thunk`and`axios`Use of requests

1. General process
- Page click button, send oneaction
- inactionIs initiated after receiving the eventajaxrequest
- inajaxIn the request data, determine whether to send it according to the conditiondispatch(Note that this returns a function that uses immediate execution functions.)
- inreducerMiddle processing justactiondistributedtypesSave the data tostateIn the
- Use just in componentsstateThe data in the

2. Create an utils folder in the SRC folder of your project

// In real business, it may be more concrete, but now it is just a simple encapsulation
import axios, { AxiosRequestConfig } from 'axios';

axios.defaults.baseURL = 'http://test.dancebox.cn/api/v1';
axios.defaults.headers.post['Content-Type'] = 'application/json; charset=UTF-8';
axios.interceptors.request.use((config: AxiosRequestConfig) = > {
  let access_token = sessionStorage.getItem('access_token');
  if (access_token)
    config.headers['Authorization'] = `Bearer ${access_token}`;
  return config;
}, (error: any) = > Promise.reject(error));

// Response interceptor puts AxiosResponse=> axiosResponse.data
axios.interceptors.response.use(response= > response.data, error= > Promise.reject(error));

export { axios };
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Create an API in the project’s SRC directory to hold the data request methods

import https from '@/utils/https';
// Define the request interface
export const activityList = () = > {
  return https.get('/front/activity');
}
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4. Define two data types in reducers/index.ts

.export type StoreDispatch = Dispatch;
export type StoreGetState = () = > CombinedState;

export default rootReducers;
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5. Request activity data in actions/counter. Ts

import * as types from '. /.. /action-types';
import { CounterPayload } from '@/typings';
import { activityList } from '@/api';
import { StoreDispatch, StoreGetState } from '.. /reducers';

export default{...// Return data using Ajax requests, because we use redux-thunk, reducer can return a function
  activityList() {
    return function (dispatch: StoreDispatch, getState: StoreGetState) {
      // To use async, use the immediate function
      (async function () {
        const response: { [propsName: string] :any } = await activityList();
        const { code, message, result } = response;
        if (Object.is(code, 0)) {
          dispatch({
            type: types.GET_ACTIVITY_DATA,
            payload: result,
          })
        } else {
          console.log('Failed to get data', message); }}) (); }}}Copy the code

6, add active SRC /typings/counter

export interface CounterState {
  count: number.activityListData: any[].// Add data to the active list
}
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7. Handle reducers/ Counter. Ts and save the data of Dispath in actions into state

import { AnyAction } from 'redux';
import * as types from '. /.. /action-types';

import { CounterState } from '@/typings';

const initState: CounterState = {
  count: 0.activityListData: [],};export default function (state: CounterState = initState, action: AnyAction) {
  switch (action.type) {
    ...
    case types.GET_ACTIVITY_DATA:
      // Get the requested data and put it in store
      console.log(action.payload);
      return { ...state, activityListData: action.payload.data }
    default:
      returnstate; }}Copy the code

8. Use in components

import React, { PropsWithChildren } from 'react';
import { connect } from 'react-redux';

import action from '@/store/actions/counter';
import { CombinedState } from '@/typings';

type Props = PropsWithChildren<ReturnType<typeof mapStateToProps> & typeof action>;

// Define an arbitrary one
type State = { [propsName: string] :any }
class Counter extends React.Component<Props.State> {
  render() {
    console.log(this.props);
    return (
      <>
        <button onClick={this.props.activityList}>Get active data</button>
        <ul>
          {
            this.props.activityListData.map(item => {
              return (
                <li key={item.id}>{item.title}</li>)})}</ul>
      </>)}}const mapStateToProps = (state: CombinedState) = > (state.counter)
export default connect(
  mapStateToProps,
  action,
)(Counter)
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Seven, configuration,`antd`The front end`UI`library

1. Install dependency packages

npm install antd
npm install ts-import-plugin
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2. Modify the webpack.config.js configuration

const tsImportPluginFactory = require('ts-import-plugin');

module.exports = {
  ...
  module: {
    rules: [{test: /\.(j|t)sx? /,
        loader: 'ts-loader'.options: {
          transpileOnly: true.// Only compile without checking
          getCustomTransformers: () = > ({ // Get or define a custom converter
            before: [tsImportPluginFactory({
              'libraryName': 'antd'.// Which module to load on demand
              'libraryDirectory': 'es'.// The on-demand module, if implemented on demand, must be ES Modules
              'style': 'css' // Automatically import its corresponding CSS}})]),compilerOptions: {
            module: 'es2015'}}},]},... }Copy the code

3. Use in components

import React, { PropsWithChildren } from 'react';
import { connect } from 'react-redux';
import { Button } from 'antd';

import action from '@/store/actions/counter';
import { CombinedState } from '@/typings';

type Props = PropsWithChildren<ReturnType<typeof mapStateToProps> & typeof action>;

// Define an arbitrary one
type State = { [propsName: string] :any }
class Counter extends React.Component<Props.State> {
  render() {
    console.log(this.props);
    return (
      <>.<Button type="primary" onClick={this.props.activityList}>Get active data</Button>
        <ul>
          {
            this.props.activityListData.map(item => {
              return (
                <li key={item.id}>{item.title}</li>)})}</ul>
      </>)}}const mapStateToProps = (state: CombinedState) = > (state.counter)
export default connect(
  mapStateToProps,
  action,
)(Counter)
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SRC /index.tsx

import React from 'react';
import ReactDOM from 'react-dom';
import { Provider } from 'react-redux';

import { ConfigProvider } from 'antd'
import zh_CN from 'antd/lib/locale-provider/zh_CN';

import store from './store';
import Counter from '@/components/Counter';

// Global style
import './assets/style/common.less';
ReactDOM.render(
  <Provider store={store}>
    <ConfigProvider locale={zh_CN}>
      <Counter />
    </ConfigProvider>
  </Provider>.document.getElementById('root'))Copy the code

React Development with typescript+ WebPack

I. Project foundation construction

Second,reactIn combination withreduxUsed together

Three, test,storeCheck whether the configuration is successful

4. Browser configurationRedux DevToolsObserve changes in the state

Optimize code, definitionstoreType constraint of

Six, the use ofredux-thunkandaxiosUse of requests

Seven, configuration,antdThe front endUIlibrary

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