componentDidMount() method

React componentDidMount Method | Lifecycle Components

The componentDidMount Method -
The componentDidMount method is called after the component is rendered.
The componentDidMount method is called exactly once and when The component has been initialized.

Explore to Understand  - React Lifecycle Components

The componentDidMount method is used for -
1.      Handling the AJAX requests - GET/POST/PUT/DELETE
2.      Set timers using setTimeout or setInterval
3.      Set timers using setInterval

As an Example,
public class Header extends React.Component {
  constructor(props) {
    super(props);
    this.state = {msg: "welcome!"};
  }

  componentDidMount() {
    setTimeout(() => {
      this.setState({msg: "welcome you Anil"})
    }, 1000)
  }

  render() {
    return (
      <h2>{this.state.msg}</h2>
    );
  }
}
ANIL SINGH

Anil Singh is an author, tech blogger, and software programmer. Book writing, tech blogging is something do extra and Anil love doing it. For more detail, kindly refer to this link..
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