HandleClick react

Onclick react

function ActionLink() {
  function handleClick(e) {    e.preventDefault();    console.log('The link was clicked.');  }
  return (
    <a href="#" onClick={handleClick}>      Click me
    </a>
  );
}

Source: reactjs.org

HandleClick react

class Toggle extends React.Component {
  constructor(props) {
    super(props);
    this.state = {isToggleOn: true};

    // This binding is necessary to make `this` work in the callback    this.handleClick = this.handleClick.bind(this);  }

  handleClick() {    this.setState(state => ({      isToggleOn: !state.isToggleOn    }));  }
  render() {
    return (
      <button onClick={this.handleClick}>        {this.state.isToggleOn ? 'ON' : 'OFF'}
      </button>
    );
  }
}

ReactDOM.render(
  <Toggle />,
  document.getElementById('root')
);

Source: reactjs.org

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