Class component react

Lifecycles if reactjs

class Clock extends React.Component {
  constructor(props) {
    super(props);
    this.state = {date: new Date()};
  }

  componentDidMount() {  }
  componentWillUnmount() {  }
  render() {
    return (
      <div>
        <h1>Hello, world!</h1>
        <h2>It is {this.state.date.toLocaleTimeString()}.</h2>
      </div>
    );
  }
}

Source: reactjs.org

Class component react

class ComponentName extends React.Component {
  render() {
    return ;
  }
}

export default ComponentName;

Class Component in ReactJS

class HelloMessage extends React.Component {
  render() {
    return (
      <div>
        Hello {this.props.name}
      </div>
    );
  }
}

ReactDOM.render(
  <HelloMessage name="Taylor" />,
  document.getElementById('hello-example')
);

Source: reactjs.org

React js class component

// New component class starts here:
class Friend extends React.Component {
  render() {
    const friend = friends[0];
    return (
      <div>
        <h1>{friend.title}</h1>
        <img src={friend.src}/>
      </div>
    );
  }
}

Similar codes

0 vote203 views1 answer
Start withnreact
Javascript React
0 vote213 views1 answer
React native run real device
Javascript React
0 vote248 views1 answer
React native text area align top
Javascript React
-1 vote182 views1 answer
Vimeo player react native
Javascript React
8 votes222 views1 answer
React-fragment
Javascript React
1 vote197 views1 answer
Press enter reaction js
Javascript React
0 vote275 views1 answer
How to add oncklick button react
Javascript React
3 votes395 views2 answers
Center an element react native
Javascript React
0 vote208 views1 answer
How to link a photo in expo react native
Javascript React
0 vote259 views1 answer
React duration picker
Javascript React