[React] React.PureComponent

React.PureComponent is similar to React.Component. The difference between them is that React.Component doesn’t implement shouldComponentUpdate(), but React.PureComponent implements it with a shallow prop and state comparison.

If your React component’s render() function renders the same result given the same props and state, you can use React.PureComponent for a performance boost in some cases.

// Component

class PureCompnent extends React.Component {

  render() {

    return (

      <div>

        <h1>{this.props.title}</h1>

      </div>

    );

  }

}

// use

<PureComponent title={'Awesome React'} />