how to pass function from sub chiild react code example
Example 1: react bind function to component
class Foo extends Component {
constructor(props) {
super(props);
this.handleClick = this.handleClick.bind(this);
}
handleClick() {
console.log('Click happened');
}
render() {
return <button onClick={this.handleClick}>Click Me</button>;
}
}
Example 2: pass function with parameter as prop
class SomeComponent extends Component{
constructor(props){
super(props);
this.myFunction = this.myFunction.bind(this);
}
myFunction(param){
console.log('do something: ', param);
}
render(){
return (<div><ChildComponent1 myFunction={this.myFunction}/></div>)
}
}
class ChildComponent1{
render(){
return (<div><ChildComponent2 myFunction={this.props.myFunction}/></div>)
}
}
class ChildComponent2{
render(){
return (<Button onClick={()=>this.props.myFunction(param)}>SomeButton</Button>)
}
}