Use the key prop when Rendering a List with React

In this lesson we're reminded that JSX is simply JavaScript and to render a list you can use the array method .map to map an array to React elements. However, if you don't use the key prop correctly, it can lead to unexpected results, so we explore what can happen and how to use the key prop correctly.

Please take a moment to tell your friends:

You must be a PRO Member to view code