1. tkarasuma

    Posted

    tkarasuma
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+Reduxのサンプル Todoリスト を真似てみる。(1)
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+[Redux ExampleのTodo Listをはじめからていねいに(1)](https://qiita.com/xkumiyu/items/9dfe51d2bcb3bdb06da3)を参考にさせて頂いて、Reduxのコードを書いた。
+#留意点
+- 初心者の覚書です。
+- 自分の環境で動くように参考にしたコードを適当に修正している。
+- Windows10 64bit , PowerShellなどで動かしている。
+- 見栄えを若干よくする為にbootstrap4を利用している。
+
+
+#PowerShellで環境準備
+
+```PowerShell:PowerShell
+PS C:\Users\Taro\Desktop> mkdir ws
+
+
+ ディレクトリ: C:\Users\Taro\Desktop
+
+
+Mode LastWriteTime Length Name
+---- ------------- ------ ----
+d----- 2018/05/27 14:26 ws
+
+
+PS C:\Users\Taro\Desktop> cd ws
+PS C:\Users\Taro\Desktop\ws> npm init -y
+Wrote to C:\Users\Taro\Desktop\ws\package.json:
+
+{
+ "name": "ws",
+ "version": "1.0.0",
+ "description": "",
+ "main": "index.js",
+ "scripts": {
+ "test": "echo \"Error: no test specified\" && exit 1"
+ },
+ "keywords": [],
+ "author": "",
+ "license": "ISC"
+}
+
+
+PS C:\Users\Taro\Desktop\ws> npm i -D babel-core babel-loader babel-preset-env babel-preset-react
+npm notice created a lockfile as package-lock.json. You should commit this file. es-commonjs
+npm WARN babel-loader@7.1.4 requires a peer of webpack@2 || 3 || 4 but none is installed. You must install peer dependencies yourself.
+npm WARN ws@1.0.0 No description
+npm WARN ws@1.0.0 No repository field.
+
++ babel-preset-env@1.7.0
++ babel-core@6.26.3
++ babel-preset-react@6.24.1
++ babel-loader@7.1.4
+added 128 packages from 67 contributors in 9.211s
+[+] no known vulnerabilities found [2032 packages audited]
+
+PS C:\Users\Taro\Desktop\ws> npm i -D webpack webpack-cli webpack-dev-server
+npm WARN deprecated nomnom@1.8.1: Package no longer supported. Contact support@npmjs.com for more info.
+npm WARN deprecated babel-preset-es2015@6.24.1: 🙌 Thanks for using Babel: we recommend using babel-preset-env now: please read babeljs.io/env to update!
+npm WARN ws@1.0.0 No description es\extend-shallow
+npm WARN ws@1.0.0 No repository field.
+npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.4 (node_modules\fsevents):
+npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.4: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
+
++ webpack-cli@2.1.4
++ webpack@4.9.1
++ webpack-dev-server@3.1.4
+added 805 packages from 507 contributors in 29.534s
+[+] no known vulnerabilities found [17167 packages audited]
+
+PS C:\Users\Taro\Desktop\ws> npm install --save react react-dom redux react-redux prop-types
+npm WARN ws@1.0.0 No description ments
+npm WARN ws@1.0.0 No repository field.
+npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.4 (node_modules\fsevents):
+npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.4: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
+
++ react-redux@5.0.7
++ react-dom@16.4.0
++ redux@4.0.0
++ prop-types@15.6.1
++ react@16.4.0
+added 17 packages from 86 contributors in 5.909s
+[+] no known vulnerabilities found [17300 packages audited]
+
+PS C:\Users\Taro\Desktop\ws> ni .babelrc , webpack.config.js, index.html
+
+
+ ディレクトリ: C:\Users\Taro\Desktop\ws
+
+
+Mode LastWriteTime Length Name
+---- ------------- ------ ----
+-a---- 2018/05/27 14:28 0 .babelrc
+-a---- 2018/05/27 14:28 0 webpack.config.js
+-a---- 2018/05/27 14:28 0 index.html
+
+
+PS C:\Users\Taro\Desktop\ws> mkdir src, dist
+
+
+ ディレクトリ: C:\Users\Taro\Desktop\ws
+
+
+Mode LastWriteTime Length Name
+---- ------------- ------ ----
+d----- 2018/05/27 14:29 src
+d----- 2018/05/27 14:29 dist
+
+
+PS C:\Users\Taro\Desktop\ws> cd src
+PS C:\Users\Taro\Desktop\ws\src> mkdir actions, components, containers, reducers
+
+
+ ディレクトリ: C:\Users\Taro\Desktop\ws\src
+
+
+Mode LastWriteTime Length Name
+---- ------------- ------ ----
+d----- 2018/05/27 14:29 actions
+d----- 2018/05/27 14:29 components
+d----- 2018/05/27 14:29 containers
+d----- 2018/05/27 14:29 reducers
+
+
+PS C:\Users\Taro\Desktop\ws\src> cd ..
+PS C:\Users\Taro\Desktop\ws> code .
+```
+#プロジェクトディレクトリに設定ファイル、そのの編集
+
+```json:.bashrc
+{
+ "presets": [
+ "env","react"
+ ]
+}
+```
+```json:package.json
+{
+ "name": "ws",
+ "version": "1.0.0",
+ "description": "",
+ "main": "index.js",
+ "scripts": {
+ "test": "echo \"Error: no test specified\" && exit 1",
+ "build": "webpack --progress",
+ "start": "webpack-dev-server --watch --progress"
+ },
+ "keywords": [],
+ "author": "",
+ "license": "ISC",
+ "devDependencies": {
+ "babel-core": "^6.26.3",
+ "babel-loader": "^7.1.4",
+ "babel-preset-env": "^1.7.0",
+ "babel-preset-react": "^6.24.1",
+ "webpack": "^4.9.1",
+ "webpack-cli": "^2.1.4",
+ "webpack-dev-server": "^3.1.4"
+ },
+ "dependencies": {
+ "prop-types": "^15.6.1",
+ "react": "^16.4.0",
+ "react-dom": "^16.4.0",
+ "react-redux": "^5.0.7",
+ "redux": "^4.0.0"
+ }
+}
+
+```
+```javascript:webpack.config.js
+const path = require('path');
+
+module.exports = {
+ mode:'development',
+ entry: './src/index.js',
+ output: {
+ path: path.join(__dirname,'dist'),
+ filename: 'index.js',
+ publicPath: path.join(__dirname,'dist')
+ },
+ devtool: '#source-map',
+ devServer: {
+ contentBase: './',
+ port: 8080
+ },
+ module: {
+ rules: [
+ { test: /\.js$/, exclude: /node_modules/, loader: 'babel-loader' }
+ ]
+ }
+ };
+
+```
+
+#ファイルを大まかに作成
+
+```html:プロジェクトディレクトリ/index.html
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta charset="UTF-8">
+ <title>ReduxでTodoリストを作ろう</title>
+ <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
+ </head>
+ <body>
+ <div id="root"></div>
+ <script src="dist/index.js"></script>
+ </body>
+</html>
+```
+```javascript:components/App.js
+import React from 'react';
+
+const App = ()=>(
+ <h1>ダミーH1</h1>
+)
+
+export default App;
+```
+
+```javascript:reducers/index.js
+const reducers = (state,action)=>{
+ return state;
+}
+export default reducers;
+```
+
+```javascript:./index.js
+import React from 'react';
+import ReactDOM from 'react-dom';
+import { Provider } from 'react-redux';
+import reducers from './reducers'
+import { createStore } from 'redux';
+import App from './components/App'
+
+let store = createStore(reducers);
+
+ReactDOM.render(
+ <Provider store={store}>
+ <App />
+ </Provider>,
+ document.getElementById('root')
+);
+
+```
+```text:コマンド実行
+npm run build
+npm run start
+```
+[http://localhost:8080](http://localhost:8080/) を表示
+
+[ソースコード](https://github.com/tkarasuma/JavaScript/tree/master/ws_01)
+