create function in class component react code example
Example 1: functional components
function Welcome(props) { return <h1>Hello, {props.name}</h1>;
}
const element = <Welcome name="Sara" />;ReactDOM.render(
element,
document.getElementById('root')
);
Example 2: react function component
function Welcome(props) {
return <h1>Hello, {props.name}</h1>;
}
Example 3: function inside a class component react
export default class Archive extends React.Component {
saySomething(something) {
console.log(something);
}
handleClick(e) {
this.saySomething("element clicked");
}
componentDidMount() {
this.saySomething("component did mount");
}
render() {
return <button onClick={this.handleClick.bind(this)} value="Click me" />;
}
}
Example 4: react native function
class Foo extends Component {
handleClick() {
console.log('Click happened');
}
render() {
return <button onClick={this.handleClick.bind(this)}>Click Me</button>;
}
}