zaki-yama-labs · zaki-yama · Dec 10, 2018 · Dec 5, 2018 · Dec 8, 2018 · Dec 8, 2018
diff --git a/typescript-react-starter/.gitignore b/typescript-react-starter/.gitignore
@@ -0,0 +1,21 @@
+# See https://help.github.com/ignore-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+
+# testing
+/coverage
+
+# production
+/build
+
+# misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
diff --git a/typescript-react-starter/README.md b/typescript-react-starter/README.md
diff --git a/typescript-react-starter/images.d.ts b/typescript-react-starter/images.d.ts
@@ -0,0 +1,7 @@
+declare module '*.svg'
+declare module '*.png'
+declare module '*.jpg'
+declare module '*.jpeg'
+declare module '*.gif'
+declare module '*.bmp'
+declare module '*.tiff'
diff --git a/typescript-react-starter/package.json b/typescript-react-starter/package.json
@@ -0,0 +1,31 @@
+{
+  "name": "my-app",
+  "version": "0.1.0",
+  "private": true,
+  "dependencies": {
+    "@types/react-redux": "^6.0.11",
+    "react": "^16.6.3",
+    "react-dom": "^16.6.3",
+    "react-redux": "^6.0.0",
+    "react-scripts-ts": "3.1.0",
+    "redux": "^4.0.1"
+  },
+  "scripts": {
+    "start": "react-scripts-ts start",
+    "build": "react-scripts-ts build",
+    "test": "react-scripts-ts test --env=jsdom",
+    "eject": "react-scripts-ts eject"
+  },
+  "devDependencies": {
+    "@types/enzyme": "^3.1.15",
+    "@types/enzyme-adapter-react-16": "^1.0.3",
+    "@types/jest": "^23.3.10",
+    "@types/node": "^10.12.12",
+    "@types/react": "^16.7.13",
+    "@types/react-dom": "^16.0.11",
+    "enzyme": "^3.8.0",
+    "enzyme-adapter-react-16": "^1.7.1",
+    "react-test-renderer": "^16.6.3",
+    "typescript": "^3.2.1"
+  }
+}
diff --git a/typescript-react-starter/public/favicon.ico b/typescript-react-starter/public/favicon.ico
diff --git a/typescript-react-starter/public/index.html b/typescript-react-starter/public/index.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
+    <meta name="theme-color" content="#000000">
+    <!--
+      manifest.json provides metadata used when your web app is added to the
+      homescreen on Android. See https://developers.google.com/web/fundamentals/engage-and-retain/web-app-manifest/
+    -->
+    <link rel="manifest" href="%PUBLIC_URL%/manifest.json">
+    <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
+    <!--
+      Notice the use of %PUBLIC_URL% in the tags above.
+      It will be replaced with the URL of the `public` folder during the build.
+      Only files inside the `public` folder can be referenced from the HTML.
+
+      Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
+      work correctly both with client-side routing and a non-root public URL.
+      Learn how to configure a non-root public URL by running `npm run build`.
+    -->
+    <title>React App</title>
+  </head>
+  <body>
+    <noscript>
+      You need to enable JavaScript to run this app.
+    </noscript>
+    <div id="root"></div>
+    <!--
+      This HTML file is a template.
+      If you open it directly in the browser, you will see an empty page.
+
+      You can add webfonts, meta tags, or analytics to this file.
+      The build step will place the bundled scripts into the <body> tag.
+
+      To begin the development, run `npm start` or `yarn start`.
+      To create a production bundle, use `npm run build` or `yarn build`.
+    -->
+  </body>
+</html>
diff --git a/typescript-react-starter/public/manifest.json b/typescript-react-starter/public/manifest.json
@@ -0,0 +1,15 @@
+{
+  "short_name": "React App",
+  "name": "Create React App Sample",
+  "icons": [
+    {
+      "src": "favicon.ico",
+      "sizes": "64x64 32x32 24x24 16x16",
+      "type": "image/x-icon"
+    }
+  ],
+  "start_url": "./index.html",
+  "display": "standalone",
+  "theme_color": "#000000",
+  "background_color": "#ffffff"
+}
diff --git a/typescript-react-starter/src/App.css b/typescript-react-starter/src/App.css
@@ -0,0 +1,28 @@
+.App {
+  text-align: center;
+}
+
+.App-logo {
+  animation: App-logo-spin infinite 20s linear;
+  height: 80px;
+}
+
+.App-header {
+  background-color: #222;
+  height: 150px;
+  padding: 20px;
+  color: white;
+}
+
+.App-title {
+  font-size: 1.5em;
+}
+
+.App-intro {
+  font-size: large;
+}
+
+@keyframes App-logo-spin {
+  from { transform: rotate(0deg); }
+  to { transform: rotate(360deg); }
+}
diff --git a/typescript-react-starter/src/App.test.tsx b/typescript-react-starter/src/App.test.tsx
@@ -0,0 +1,9 @@
+import * as React from 'react';
+import * as ReactDOM from 'react-dom';
+import App from './App';
+
+it('renders without crashing', () => {
+  const div = document.createElement('div');
+  ReactDOM.render(<App />, div);
+  ReactDOM.unmountComponentAtNode(div);
+});
diff --git a/typescript-react-starter/src/App.tsx b/typescript-react-starter/src/App.tsx
@@ -0,0 +1,22 @@
+import * as React from 'react';
+import './App.css';
+
+import logo from './logo.svg';
+
+class App extends React.Component {
+  public render() {
+    return (
+      <div className="App">
+        <header className="App-header">
+          <img src={logo} className="App-logo" alt="logo" />
+          <h1 className="App-title">Welcome to React</h1>
+        </header>
+        <p className="App-intro">
+          To get started, edit <code>src/App.tsx</code> and save to reload.
+        </p>
+      </div>
+    );
+  }
+}
+
+export default App;
diff --git a/typescript-react-starter/src/actions/index.tsx b/typescript-react-starter/src/actions/index.tsx
@@ -0,0 +1,23 @@
+import * as constants from '../constants';
+
+export interface IncrementEnthusiasm {
+  type: constants.INCREMENT_ENTHUSIASM;
+}
+
+export interface DecrementEnthusiasm {
+  type: constants.DECREMENT_ENTHUSIASM;
+}
+
+export type EnthusiasmAction = IncrementEnthusiasm | DecrementEnthusiasm;
+
+export function incrementEnthusiasm(): IncrementEnthusiasm {
+  return {
+    type: constants.INCREMENT_ENTHUSIASM,
+  };
+}
+
+export function decrementEnthusiasm(): DecrementEnthusiasm {
+  return {
+    type: constants.DECREMENT_ENTHUSIASM,
+  };
+}
diff --git a/typescript-react-starter/src/components/Hello.css b/typescript-react-starter/src/components/Hello.css
@@ -0,0 +1,13 @@
+.hello {
+  text-align: center;
+  margin: 20px;
+  font-size: 48px;
+  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
+}
+
+.hello button {
+  margin-left: 25px;
+  margin-right: 25px;
+  font-size: 40px;
+  min-width: 50px;
+}
diff --git a/typescript-react-starter/src/components/Hello.test.tsx b/typescript-react-starter/src/components/Hello.test.tsx
@@ -0,0 +1,30 @@
+import * as React from 'react';
+import * as enzyme from 'enzyme';
+import Hello from './Hello';
+
+it('renders the correct text when no enthusiasm level is given', () => {
+  const hello = enzyme.shallow(<Hello name='Daniel' />);
+  expect(hello.find('.greeting').text()).toEqual('Hello Daniel!')
+});
+
+it('renders the correct text with an explicit enthusiasm of 1', () => {
+  const hello = enzyme.shallow(<Hello name='Daniel' enthusiasmLevel={1} />);
+  expect(hello.find('.greeting').text()).toEqual('Hello Daniel!')
+});
+
+it('renders the correct text with an explicit enthusiasm of 5', () => {
+  const hello = enzyme.shallow(<Hello name='Daniel' enthusiasmLevel={5} />);
+  expect(hello.find('.greeting').text()).toEqual('Hello Daniel!!!!!')
+});
+
+it('throws when the enthusiasm level is 0', () => {
+  expect(() => {
+    enzyme.shallow(<Hello name={'Daniel'} enthusiasmLevel={0} />);
+  }).toThrow();
+});
+
+it('throws when the enthusiasm level is negative', () => {
+  expect(() => {
+    enzyme.shallow(<Hello name={'Daniel'} enthusiasmLevel={-1} />);
+  }).toThrow();
+});
diff --git a/typescript-react-starter/src/components/Hello.tsx b/typescript-react-starter/src/components/Hello.tsx
@@ -0,0 +1,33 @@
+import * as React from 'react';
+
+export interface Props {
+  name: string;
+  enthusiasmLevel?: number;
+  onIncrement?: () => void;
+  onDecrement?: () => void;
+}
+
+function Hello({ name, enthusiasmLevel = 1, onIncrement, onDecrement }: Props) {
+  if (enthusiasmLevel <= 0) {
+    throw new Error('You could be a little more enthusiastic. :D');
+  }
+
+  return (
+    <div className="hello">
+      <div className="greeting">
+        Hello {name + getExclamationMarks(enthusiasmLevel)}
+      </div>
+      <div>
+        <button onClick={onDecrement}>-</button>
+        <button onClick={onIncrement}>+</button>
+      </div>
+    </div>
+  );
+}
+
+export default Hello;
+
+// helpers
+function getExclamationMarks(numChars: number) {
+  return Array(numChars + 1).join('!');
+}
diff --git a/typescript-react-starter/src/components/StatefulHello.tsx b/typescript-react-starter/src/components/StatefulHello.tsx
@@ -0,0 +1,51 @@
+import * as React from 'react';
+
+import './Hello.css';
+
+export interface Props {
+  name: string;
+  enthusiasmLevel?: number;
+}
+
+interface State {
+  currentEnthusiasm: number;
+}
+
+class Hello extends React.Component<Props, State> {
+  constructor(props: Props) {
+    super(props);
+    this.state = { currentEnthusiasm: props.enthusiasmLevel || 1 };
+  }
+
+  onIncrement = () => this.updateEnthusiasm(this.state.currentEnthusiasm + 1);
+  onDecrement = () => this.updateEnthusiasm(this.state.currentEnthusiasm - 1);
+
+  render() {
+    const { name } = this.props;
+
+    if (this.state.currentEnthusiasm <= 0) {
+      throw new Error('You could be a little more enthusiastic. :D');
+    }
+
+    return (
+      <div className="hello">
+        <div className="greeting">
+          Hello {name + getExclamationMarks(this.state.currentEnthusiasm)}
+        </div>
+        <button onClick={this.onDecrement}>-</button>
+        <button onClick={this.onIncrement}>+</button>
+      </div>
+    );
+  }
+
+  updateEnthusiasm(currentEnthusiasm: number) {
+    this.setState({ currentEnthusiasm });
+  }
+}
+
+export default Hello;
+
+// helpers
+function getExclamationMarks(numChars: number) {
+  return Array(numChars + 1).join('!');
+}
diff --git a/typescript-react-starter/src/constants/index.tsx b/typescript-react-starter/src/constants/index.tsx
@@ -0,0 +1,5 @@
+export const INCREMENT_ENTHUSIASM = 'INCREMENT_ENTHUSIASM';
+export type INCREMENT_ENTHUSIASM = typeof INCREMENT_ENTHUSIASM;
+
+export const DECREMENT_ENTHUSIASM = 'DECREMENT_ENTHUSIASM';
+export type DECREMENT_ENTHUSIASM = typeof DECREMENT_ENTHUSIASM;
diff --git a/typescript-react-starter/src/containers/Hello.tsx b/typescript-react-starter/src/containers/Hello.tsx
@@ -0,0 +1,22 @@
+import { connect } from 'react-redux';
+import { Dispatch } from 'redux';
+
+import Hello from '../components/Hello'
+import * as actions from '../actions'
+import { StoreState } from '../types';
+
+export function mapStateToProps({ enthusiasmLevel, languageName }: StoreState) {
+  return {
+    enthusiasmLevel,
+    name: languageName,
+  };
+}
+
+export function mapDispatchToProps(dispatch: Dispatch<actions.EnthusiasmAction>) {
+  return {
+    onIncrement: () => dispatch(actions.incrementEnthusiasm()),
+    onDecrement: () => dispatch(actions.decrementEnthusiasm()),
+  };
+}
+
+export default connect(mapStateToProps, mapDispatchToProps)(Hello);
diff --git a/typescript-react-starter/src/index.css b/typescript-react-starter/src/index.css
@@ -0,0 +1,5 @@
+body {
+  margin: 0;
+  padding: 0;
+  font-family: sans-serif;
+}