/Javascript/React/How to use keyextractor in flatlist react native

How to use keyextractor in flatlist react native

How to use flatlist keyextractor

<FlatList 
  data={[{name: 'a'}, {name: 'b'}]} 
  renderItem={
    ({item}) => <Text>{item.name}</Text>
  } 
  keyExtractor={(item, index) => index.toString()}
/>

Source: stackoverflow.com

Flatlist react native keyextractor

keyExtractor = () => {
    return new Date().getTime().toString() + (Math.floor(Math.random() * Math.floor(new Date().getTime()))).toString();  };

Source: stackoverflow.com

Flatlist react native keyextractor

keyExtractor = item => {
    return item.id.toString() + new Date().getTime().toString() + (Math.floor(Math.random() * Math.floor(new Date().getTime()))).toString();  };

Source: stackoverflow.com

Similar codes

1 vote214 views1 answer
React why onclick property function trigger without click
Javascript React
0 vote225 views1 answer
Align image center react native
Javascript React
2 votes202 views2 answers
Splice state react
Javascript React
18 votes208 views6 answers
Export apk react native
Javascript React
7 votes209 views3 answers
Add backgorund image in react native app
Javascript React
0 vote211 views6 answers
State functions of react cheatsheet
Javascript React
0 vote234 views1 answer
Ngrok react.js
Javascript React
1 vote212 views1 answer
How to paste in android emulator react nativ etext input
Javascript React
0 vote214 views1 answer
React Redux store exemple
Javascript React
4 votes221 views1 answer
React router history push parameter
Javascript React