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November 29, 2019 19:34
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import React from 'react'; | |
const NormalDiv = props => <div {...props} /> | |
const App = () => { | |
const [randomValue, setRandomValue] = React.useState(0); | |
return ( | |
<React.Fragment> | |
{new Array(50).fill(null).map((__, i) => ( | |
<NormalDiv key={i}>Hello World</NormalDiv> | |
))} | |
<button onClick={() => setRandomValue(Math.random())}>Force Rerender</button> | |
</React.Fragment> | |
); | |
}; |
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