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React - onClick example (class component)

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Created by:
FryerTuck
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In this article, we would like to show you how to use onClick event in React.

In below example, we pass handleClick arrow function to the button's onClick property that handles mouse click event.

Note: Before we pass handleClick function to onClick property, we need to bind it in the constructor.

Runnable example:

// ONLINE-RUNNER:browser;

//Note: Uncomment import lines during working with JSX Compiler.
// import React from 'react';
// import ReactDOM from 'react-dom';

class App extends React.Component {
  constructor(props) {
    super(props);
    this.handleClick = this.handleClick.bind(this);
  }
  handleClick = () => {
    console.log('handleClick catched');
  }
  render() {
    return (
      <div className="App">
        <button onClick={this.handleClick}>Click me</button>
      </div>
    );
  }
}

const root = document.querySelector('#root');
ReactDOM.render(<App />, root );

Note:
If you want the solution with functional component read this article. 

ReactJS

React - onClick example (class component)
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