what data type are props in react code example

Example 1: use propTypes in react function

import React from 'react';
import { PropTypes } from 'prop-types';

const student = (props) => {
  return (
    

      
Student Name: {props.name}
      
Age: {props.age}
    
  );
};

student.propTypes = {
  name: PropTypes.string,
  age: PropTypes.number
};

export default student;

Example 2: props in react app

/* PASSING THE PROPS to the 'Greeting' component */
const expression = 'Happy';
 // statement and expression are the props (ie. arguments) we are passing to Greeting component

/* USING THE PROPS in the child component */
class Greeting extends Component {
  render() {
    return 
{this.props.statement} I am feeling {this.props.expression} today!
;
  }
}

--------------------------------------------
function Welcome(props) {
  return 
Hello, {props.name}
;
}

const element = ;
ReactDOM.render(
  element,
  document.getElementById('root')
);