Setup Instructions

Steps to get your project up and running from scratch.

Getting started

Firstly, install the package:

git init
mkdir src
mkdir src/components
touch .gitignore template.ejs  webpack.config.js src/index.jsx src/components/App.jsx
npm init
apm i [email protected]

.gitignore

.DS_STORE
node_modules
build

Webpack Dependencies

npm install [email protected] [email protected] eslint eslint-plugin-react -g
npm install [email protected] [email protected] [email protected] [email protected] --save

npm install [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] eslint-loader [email protected] [email protected] --save-dev

CSS dependency

npm install --save styled-jsx

Linter things

eslint --init

Then answer these questions in the terminal about your style:

Are you using ECMAScript 6 features? Yes
Are you using ES6 modules? Yes
Where will your code run? Browser
Do you use CommonJS? No
Do you use JSX? Yes
Do you use React? Yes
What style of indentation do you use? Spaces
What quotes do you use for strings? Single
What line endings do you use? Unix
Do you require semicolons? Yes
What format do you want your config file to be in? JSON

.eslintrc.json

{
  "env": {
      "browser": true,
      "es6": true
  },
  "extends": "eslint:recommended",
  "parserOptions": {
      "ecmaFeatures": {
          "experimentalObjectRestSpread": true,
          "jsx": true
      },
      "sourceType": "module"
  },
  "plugins": [
      "react"
  ],
  "rules": {
    "react/jsx-key": 2,
    "react/jsx-uses-vars": 2,
    "react/jsx-uses-react": 2,
    "react/jsx-no-duplicate-props": 2,
    "react/jsx-no-undef": 2,
    "react/no-multi-comp": 2,
    "react/jsx-indent-props": [
        "error",
        2
      ],
    "react/jsx-pascal-case": 2,
    "react/prop-types": 2,
    "react/jsx-indent": [
        "error",
        2
    ],
    "indent": [
        "error",
        2
    ],
    "linebreak-style": [
        "error",
        "unix"
    ],
    "quotes": [
        "error",
        "single"
    ],
    "semi": [
        "error",
        "always"
    ]
  }
}

TO ENABLE AND DISABLE LINTER

  /*eslint-disable */  
  <code here>  
  /*eslint-enable */

webpack.config.js

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

module.exports = {

  entry: [
    'react-hot-loader/patch',
    'webpack-dev-server/client?http://localhost:8080',
    'webpack/hot/only-dev-server',
    resolve(__dirname, "src", "index.jsx")
  ],

  output: {
    filename: 'app.bundle.js',
    path: resolve(__dirname, 'build'),
    publicPath: '/'
  },

  resolve: {
    extensions: ['.js', '.jsx']
  },

  devtool: '#source-map',

  devServer: {
    hot: true,
    contentBase: resolve(__dirname, 'build'),
    publicPath: '/'
  },

  module: {
    rules: [
      {
        test: /\.jsx?$/,
        enforce: "pre",
        loader: "eslint-loader",
        exclude: /node_modules/,
        options: {
          emitWarning: true,
          configFile: "./.eslintrc.json"
        }
      },
      {
        test: /\.(png|gif|jp(e*)g|svg)$/,
        use: {
          loader: 'url-loader',
          options: {
            limit: 8000,
            name: 'images/[hash]-[name].[ext]'
          }
        }
      },
      {
        test: /\.jsx?$/,
        loader: "babel-loader",
        exclude: /node_modules/,
        options: {
          presets: [
            ["es2015", {"modules": false}],
            "react",
          ],
          plugins: [
            "react-hot-loader/babel",
            "styled-jsx/babel"
          ]
        }
      },
    ],
  },

  plugins: [
    new webpack.HotModuleReplacementPlugin(),
    new webpack.NamedModulesPlugin(),
    new HtmlWebpackPlugin({
      template:'template.ejs',
      appMountId: 'react-app-root',
      title: 'React Help Queue',
      filename: resolve(__dirname, "build", "index.html"),
    }),
  ]
};

template.ejs

<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <title><%= htmlWebpackPlugin.options.title %></title>
</head>
  <body>
    <% if (htmlWebpackPlugin.options.appMountId) { %>
      <div id="<%= htmlWebpackPlugin.options.appMountId%>"></div>
    <% } %>
  </body>
</html>

package.json

"scripts": {
  "lint": "eslint src/** src/**/**; exit 0",
  "lint-fix": "eslint src/** src/**/** --fix; exit 0",
  "test": "echo \"Error: no test specified\" && exit 1",
  "start":  "webpack-dev-server"
},

index.jsx

import React from "react";
import ReactDOM from "react-dom";
import App from "./components/App";
import { AppContainer } from 'react-hot-loader';
import { HashRouter } from 'react-router-dom';

const render = (Component) => {
  ReactDOM.render(
    <AppContainer>
      <HashRouter>
        <Component/>
      </HashRouter>
    </AppContainer>,
    document.getElementById('react-app-root')
  );
};

render(App);

/*eslint-disable */
if (module.hot) {
  module.hot.accept('./components/App', () => {
    render(App)
  });
}
/*eslint-enable */

App.jsx

import React from "react";

function App() {
  return (
    <div>
      google
    </div>
  );
}

export default App;

SERVE BUILD ERROR CHECK

$ webpack-dev-server

If you alter anything but a component (configuration files, entry points, HTML templates, etc.) you'll still have to restart the server for changes to take place.

$ npm run start

we should see Webpack runs the $ webpack-dev-server to both compile our project, and launches our development server. It might not feel efficient to map one command to another command like this, but it's actually best practice. start is standard naming convention for scripts that launch a project. Since React is a library that can be combined with countless other tools, the command to start a React app isn't always the same. If a developer isn't using webpack-dev-server, their app will have a different command. But, by mapping whatever your launch command is to $ npm run start, any developer can use the same industry standard to launch your application. Pretty cool!

$ npm run lint

Check for syntax errors

$ npm run lint-fix

Fix syntax errors

Independent Project Objectives:

Development environment is fully-functional, including Babel transpiling, Webpack module bundling, a development server with hot module replacement, and linting. Components are used to create modular UI elements. propTypes define data types and shapes for all component props. Application successfully uses client-side routing via the React-Router library to create appearance of multiple pages. Styles are successfully added using CSS objects. Application works as expected. Application is in a polished, portfolio-quality state. Project was submitted by the Friday deadline. Project demonstrates an understanding of this week's concepts. If prompted, you can discuss your code with an instructor using the correct terminology.

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