Update react

npm install react-scripts@latest

Update react app

//NPM
npm install --save react@latest

//Yarn
yarn upgrade react@latest

Source: stackoverflow.com

How to update react app

//open terminal and run thsi code 
cd newreact
//where newreact is the old react app you created
//open package.json in text editor and change the version to latest
//open the same terminal gain and run this
npm install

React lifecycle hooks

class Content extends React.Component {
  // ...
  componentWillMount() {
    this.setState({ activities: data });
  }
  // ...
}

-1

Source: newline.co

Similar codes

0 vote297 views1 answer
Only numbers or string. Input field in React
Javascript React
0 vote309 views1 answer
React '$' is not define
Javascript React
0 vote293 views1 answer
React route send informaion in url
Javascript React
0 vote299 views1 answer
Jest mock react router params
Javascript React
0 vote322 views1 answer
Truncate function react
Javascript React
0 vote290 views1 answer
Get nested value on object react using dot
Javascript React
-1 vote337 views1 answer
How to run react native app on simulator
Javascript React
1 vote314 views1 answer
Failed to transform react-native-reanimated-65.aar
Javascript React
0 vote325 views1 answer
React replace all line breaks with br
Javascript React
-2 votes311 views2 answers
React native margin
Javascript React