Tag: react native virtualized lists

React Lists

In React, you will render lists with some type of loop.

The JavaScript map() array method is generally the preferred method.

If you need a refresher on the map() method, check out the ES6 section.

Example:

Let’s render all of the cars from our garage:

function Car(props) {
  return <li>I am a { props.brand }</li>;
}

function Garage() {
  const cars = ['Ford', 'BMW', 'Audi'];
  return (
    <>
      <h1>Who lives in my garage?</h1>
      <ul>
        {cars.map((car) => <Car brand={car} />)}
      </ul>
    </>
  );
}

const root = ReactDOM.createRoot(document.getElementById('root'));
root.render(<Garage />);

When you run this code in your create-react-app, it will work but you will receive a warning that there is no “key” provided for the list items. Continue reading React Lists