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April 14, 2018 18:23
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Free React.js Bootcamp, Day 2 Challenge
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>First React App</title> | |
| <script crossorigin src="https://unpkg.com/react@16/umd/react.development.js"></script> | |
| <script crossorigin src="https://unpkg.com/react-dom@16/umd/react-dom.development.js"></script> | |
| <script src='https://unpkg.com/babel-standalone@6/babel.min.js'></script> | |
| </head> | |
| <body> | |
| <div id='app'></div> | |
| <script type='text/babel'> | |
| function FriendsList(props) { | |
| return ( | |
| <div> | |
| <ul> | |
| {props.list.map((name, i) => { | |
| return ( | |
| <li key={name}> | |
| <span>{name}</span> | |
| <button onClick={() => props.onRemoveFriend(name)}>Remove</button> | |
| <button onClick={() => props.onDeactiveFriend(name)}> | |
| Deactive | |
| </button> | |
| </li> | |
| ); | |
| })} | |
| </ul> | |
| </div> | |
| ); | |
| } | |
| function InactiveFriendsList(props) { | |
| return ( | |
| <div> | |
| <ul> | |
| {props.list.map((name, i) => { | |
| return ( | |
| <li key={name}> | |
| <span>{name}</span> | |
| <button onClick={() => props.onActiveFriend(name)}>Active</button> | |
| </li> | |
| ); | |
| })} | |
| </ul> | |
| </div> | |
| ); | |
| } | |
| class App extends React.Component { | |
| constructor(props) { | |
| super(props); | |
| this.state = { | |
| friends: ['Jordyn', 'Mikenzi', 'Jake'], | |
| inactiveFriends: [], | |
| input: '' | |
| }; | |
| this.handleAddFriend = this.handleAddFriend.bind(this); | |
| this.handleRemoveFriend = this.handleRemoveFriend.bind(this); | |
| this.updateInput = this.updateInput.bind(this); | |
| this.handleClearFriend = this.handleClearFriend.bind(this); | |
| this.handleActiveFriend = this.handleActiveFriend.bind(this); | |
| this.handleDeactiveFriend = this.handleDeactiveFriend.bind(this); | |
| } | |
| handleClearFriend() { | |
| this.setState(currentState => { | |
| return { | |
| friends: [], | |
| inactiveFriends: [] | |
| }; | |
| }); | |
| } | |
| handleAddFriend() { | |
| if (this.state.input.length > 0) { | |
| this.setState(currentState => { | |
| return { | |
| friends: currentState.friends.concat([currentState.input]), | |
| input: '' | |
| }; | |
| }); | |
| } | |
| } | |
| handleRemoveFriend(name) { | |
| this.setState(currentState => { | |
| return { | |
| friends: currentState.friends.filter(friend => friend != name) | |
| }; | |
| }); | |
| } | |
| handleActiveFriend(name) { | |
| this.setState(currentState => { | |
| return { | |
| friends: currentState.friends.concat([name]), | |
| inactiveFriends: currentState.inactiveFriends.filter( | |
| friend => friend != name | |
| ) | |
| }; | |
| }); | |
| } | |
| handleDeactiveFriend(name) { | |
| this.setState(currentState => { | |
| return { | |
| friends: currentState.friends.filter(friend => friend != name), | |
| inactiveFriends: currentState.inactiveFriends.concat([name]) | |
| }; | |
| }); | |
| } | |
| updateInput(e) { | |
| const value = e.target.value; | |
| this.setState(() => ({ input: value })); | |
| } | |
| render() { | |
| return ( | |
| <div> | |
| <input | |
| type="text" | |
| placeholder="new friend" | |
| value={this.state.input} | |
| onChange={this.updateInput} | |
| /> | |
| <button onClick={this.handleAddFriend}>Submit</button> | |
| <br /> | |
| <button onClick={this.handleClearFriend}>Clear All</button> | |
| <h2>Active Friends</h2> | |
| <FriendsList | |
| list={this.state.friends} | |
| onRemoveFriend={this.handleRemoveFriend} | |
| onDeactiveFriend={this.handleDeactiveFriend} | |
| /> | |
| <h2>Inactive Friends</h2> | |
| <InactiveFriendsList | |
| list={this.state.inactiveFriends} | |
| onRemoveFriend={this.handleRemoveFriend} | |
| onActiveFriend={this.handleActiveFriend} | |
| /> | |
| </div> | |
| ); | |
| } | |
| } | |
| ReactDOM.render(<App />, document.getElementById('app')); | |
| </script> | |
| </body> | |
| </html> |
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