Btukfyl

I don't really get what does {...props} do? I understand that you can 'unload' all the props easier this way, but what about a case that we don't have any props yet? for example, consider this code

const input = (props) =>{

    let inputElement = null;



    switch(props.inputtype) {

        case('input'):

            inputElement = <input className={classes.InputElement} {...props} />

            break;

        case('textarea'):

            inputElement = <textarea className={classes.InputElement} {...props} />

            break;

        default:

            inputElement = <input className={classes.InputElement} {...props} />;

    }



    return(

        <div className={classes.Input}>

            <label className={classes.Label}> {props.label} </label>

            {inputElement}

        </div>

    );

}

What does ...props do in this case, because we don't have any components here this is a fresh new component, does it mean that when i reuse this component i cna give it any props i want?

let's say

props = {

   propA: 'a',

   propB: 'B'

};

doing

<input className={classes.InputElement} {...props} />

is the same as

<input className={classes.InputElement} propA={'a'} propB={'B'} />

Adding {...props} to an element will take an object called props, containing key/value pairs, and pass them all to the element as props.

The name doesn’t even have to be {...props}. You can pass it any object.

For example, instead of the following:

class FavouriteEmployee extends Component {

  render() {

    return <Employee name=“Dave” location=“New York” />;

  }

}

You could instead write:

class FavouriteEmployee extends Component {

  render() {

    const employeeDetails = {

      name: “Dave”,

      location: “New York”

    };

    return <Employee {...employeeDetails} />;

  }

}