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April 11, 2018 21:42
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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> | |
window.API = { | |
fetchFriends() { | |
return new Promise((res, rej) => { | |
const friends = [ | |
{ | |
name: 'Jordyn', | |
active: true, | |
}, | |
{ | |
name: 'Mikenzi', | |
active: true, | |
}, | |
{ | |
name: 'Jake', | |
active: false | |
} | |
] | |
setTimeout(() => res(friends), 2000) | |
}) | |
} | |
} | |
</script> | |
<script type='text/babel'> | |
function ActiveFriends (props) { | |
return ( | |
<div> | |
<h2>Active Friends</h2> | |
<ul> | |
{props.list.map((friend) => ( | |
<li key={friend.name}> | |
<span>{friend.name}</span> | |
<button onClick={() => props.onRemoveFriend(friend.name)}>Remove</button> | |
<button onClick={() => props.onToggleFriend(friend.name)}>Deactivate</button> | |
</li> | |
))} | |
</ul> | |
</div> | |
) | |
} | |
function InactiveFriends (props) { | |
return ( | |
<div> | |
<h2>Inactive Friends</h2> | |
<ul> | |
{props.list.map((friend) => ( | |
<li key={friend.name}> | |
<span>{friend.name}</span> | |
<button onClick={() => props.onToggleFriend(friend.name)}>Activate</button> | |
</li> | |
))} | |
</ul> | |
</div> | |
) | |
} | |
class App extends React.Component { | |
constructor(props) { | |
super(props) | |
this.state = { | |
friends: [], | |
input: '', | |
} | |
this.handleRemoveFriend = this.handleRemoveFriend.bind(this) | |
this.updateInput = this.updateInput.bind(this) | |
this.handleAddFriend = this.handleAddFriend.bind(this) | |
this.handleToggleFriend = this.handleToggleFriend.bind(this) | |
console.log('--constructor--') | |
} | |
componentDidMount() { | |
console.log('--componentDidMount--') | |
API.fetchFriends() | |
.then((friends) => { | |
this.setState({ | |
friends, | |
loading: false, | |
}) | |
}) | |
} | |
componentDidUpdate() { | |
console.log('--componentDidUpdate--') | |
} | |
componentWillUnmount() { | |
console.log('--componentWillUnmount--') | |
} | |
handleAddFriend() { | |
this.setState((currentState) => { | |
return { | |
friends: currentState.friends.concat([{ | |
name: this.state.input, | |
active: true | |
}]), | |
input: '' | |
} | |
}) | |
} | |
handleRemoveFriend(name) { | |
this.setState((currentState) => { | |
return { | |
friends: currentState.friends.filter((friend) => friend.name !== name) | |
} | |
}) | |
} | |
handleToggleFriend(name) { | |
this.setState((currentState) => { | |
const friend = currentState.friends.find((friend) => friend.name === name) | |
return { | |
friends: currentState.friends.filter((friend) => friend.name !== name) | |
.concat([{ | |
name, | |
active: !friend.active | |
}]) | |
} | |
}) | |
} | |
updateInput(e) { | |
const value = e.target.value | |
this.setState({ | |
input: value | |
}) | |
} | |
render() { | |
console.log('--render--') | |
if (this.state.loading === true) { | |
return <h1>LOADING</h1> | |
} | |
return ( | |
<div> | |
<input | |
type='text' | |
placeholder='new friend' | |
value={this.state.input} | |
onChange={this.updateInput} | |
/> | |
<button onClick={this.handleAddFriend}> | |
Submit | |
</button> | |
<div> | |
<button onClick={() => this.setState({ | |
friends: [] | |
})}>Clear All</button> | |
</div> | |
<ActiveFriends | |
list={this.state.friends.filter((friend) => friend.active === true)} | |
onRemoveFriend={this.handleRemoveFriend} | |
onToggleFriend={this.handleToggleFriend} | |
/> | |
<InactiveFriends | |
list={this.state.friends.filter((friend) => friend.active === false)} | |
onToggleFriend={this.handleToggleFriend} | |
/> | |
</div> | |
) | |
} | |
} | |
ReactDOM.render( | |
<App />, | |
document.getElementById('app') | |
) | |
</script> | |
</body> | |
</html> |
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