how to get props in child component code example
Example 1: react pass prop to parent
import React, { useState, Component } from 'react';
import Input from '../../shared/input-box/InputBox'
const Form = function (props) {
const [value, setValue] = useState('');
const onchange = (data) => {
setValue(data)
console.log("Form>", data);
}
return (
<div>
<Input data={value} onchange={(e) => { onchange(e) }}/>
</div>
);
}
export default Form;
import React from 'react';
const Input = function (props) {
console.log("Props in Input :", props);
const handleChange = event => {
props.onchange(event.target.value);
}
return (
<div>
<input placeholder="name"
id="name"
onChange= {handleChange}
/>
</div>
);
}
export default Input;
Example 2: react pass props to children
import React, { Children, isValidElement, cloneElement } from 'react';
const Child = ({ doSomething, value }) => (
<div onClick={() => doSomething(value)}>Click Me</div>
);
function Parent({ children }) {
function doSomething(value) {
console.log('doSomething called by child with value:', value);
}
render() {
const childrenWithProps = Children.map(children, child => {
if (isValidElement(child)) {
return cloneElement(child, { doSomething })
}
return child;
});
return <div>{childrenWithProps}</div>
}
};
ReactDOM.render(
<Parent>
<Child value="1" />
<Child value="2" />
</Parent>,
document.getElementById('container')
);