props function code example

Example 1: function component with props

import React from "react"

function Checkbox(props){
    return (
        <div>
            <input type="checkbox" />
            <label>{props.value}</label>
        </div>
    )
}

export default Checkbox

Example 2: props in react app

/* PASSING THE PROPS to the 'Greeting' component */
const expression = 'Happy';
<Greeting statement='Hello' expression={expression}/> // 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 <h1>{this.props.statement} I am feeling {this.props.expression} today!</h1>;
  }
}

--------------------------------------------
function Welcome(props) {
  return <h1>Hello, {props.name}</h1>;
}

const element = <Welcome name="Sara" />;
ReactDOM.render(
  element,
  document.getElementById('root')
);

Example 3: class component params in react

<input 
		type= "text"
     	value={ this.state.value || "" }
     	placeholder="Enter Name"
/>