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Add react-lazy-load for Transfer perfermance, close #2860
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--- | ||
order: 4 | ||
debug: true | ||
title: | ||
zh-CN: 大数据性能测试 | ||
en-US: Performance Test | ||
--- | ||
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## zh-CN | ||
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2000 条数据。 | ||
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## en-US | ||
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2000 items. | ||
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````jsx | ||
import { Transfer } from 'antd'; | ||
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const App = React.createClass({ | ||
getInitialState() { | ||
return { | ||
mockData: [], | ||
targetKeys: [], | ||
}; | ||
}, | ||
componentDidMount() { | ||
this.getMock(); | ||
}, | ||
getMock() { | ||
const targetKeys = []; | ||
const mockData = []; | ||
for (let i = 0; i < 2000; i++) { | ||
const data = { | ||
key: i.toString(), | ||
title: `content${i + 1}`, | ||
description: `description of content${i + 1}`, | ||
chosen: Math.random() * 2 > 1, | ||
}; | ||
if (data.chosen) { | ||
targetKeys.push(data.key); | ||
} | ||
mockData.push(data); | ||
} | ||
this.setState({ mockData, targetKeys }); | ||
}, | ||
handleChange(targetKeys, direction, moveKeys) { | ||
console.log(targetKeys, direction, moveKeys); | ||
this.setState({ targetKeys }); | ||
}, | ||
render() { | ||
return ( | ||
<Transfer | ||
dataSource={this.state.mockData} | ||
targetKeys={this.state.targetKeys} | ||
onChange={this.handleChange} | ||
render={item => item.title} | ||
/> | ||
); | ||
}, | ||
}); | ||
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ReactDOM.render(<App />, mountNode); | ||
```` |
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