componentdidupdate react example

Example 1: prev props

componentDidUpdate(prevProps) {
  // Utilisation classique (pensez bien à comparer les props) :
  if (this.props.userID !== prevProps.userID) {
    this.fetchData(this.props.userID);
  }
}

Example 2: shouldcomponentupdate

shouldComponentUpdate(nextProps, nextState) {
  return true;
}

Example 3: component did mmount

componentDidUpdate(prevProps, prevState, snapshot)