rendering-lists-with-map.md

Rendering lists in React using .map()

JavaScript libraries like React utilize .map() to render items in a list. This requires JSX syntax however as .map() method is wrapped in mustache-like JSX syntax. Here's a good example of a React component.

import React from "react";
import ReactDOM from "react-dom";

const names = ["john", "sean", "mike", "jean", "chris"];

const NamesList = () => (
  <div>
    <ul>{names.map(name => <li key={name}> {name} </li>)}</ul>
  </div>
);

const rootElement = document.getElementById("root");
ReactDOM.render(<NamesList />, rootElement);

The individual list items are rendered using .map() to iterate over the names array initially created