Pure Component in React Js

 App.js:

import React,{ PureComponent} from "react";

class App extends PureComponent

{

  constructor()

  {

    super();

    this.state={count:1}

  }

  render()

  {

    console.warn("Check Re-rendring")

    return(

      <div>

        <h1>App Component: {this.state.count}</h1>

        <button onClick={()=>this.setState({count:1})}>Click Me </button>

      </div>

    )

  }

}

export default App;