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March 2, 2018 04:05
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Select which component to render
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const Beer = () => <div> | |
<input name='$$abv' /> | |
</div> | |
const Wine = () => <div> | |
<input name='$$vintage' /> | |
<input name='$$appellation' /> | |
</div> | |
class Form extends React.Component { | |
submit = evt => { | |
const json = {} | |
for (let key in evt.target) { | |
if (key.startsWith('$$')) | |
json[key.slice(2)] = evt.target[key].value | |
} | |
} | |
render() { | |
return <form onSubmit={this.submit}> | |
<Select name='$$type' from={{ | |
Wine, Beer, Soma, | |
Cider: <Beer type="cider" /> | |
}} /> | |
</form> | |
} | |
} |
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import React from 'react' | |
class Select extends React.Component { | |
state = {Selected: this.props.from[Object.keys(this.props.from)[0]]} | |
didChange = evt => this.setState({Selected: this.props.from[evt.target.value]}) | |
render() { | |
const {from, name} = this.props | |
const {Selected} = this.state | |
return [ | |
<select onChange={this.didChange} name={name}> { | |
Object.keys(from) | |
.map(name => <option value={name}>{name}</option>) | |
} </select>, | |
Selected && (React.isValidElement(Selected) ? Selected : <Selected />) | |
] | |
} | |
} | |
/// Usage: | |
import {Wine, Beer, Soma, Liquor} from '~/views' | |
<Select from={{ | |
Wine, Beer, Soma, | |
Cider: <Beer type="cider" /> | |
}} /> |
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