Lists and Keys

11. Lists and Keys

Learn how to render lists of elements and the importance of keys in React.

1 min read Chapter 11 of 19

JavaScript

Lists and keys in React help you efficiently render collections of components.

"I want to display a list of items without rewriting the same code over and over."

In React, lists allow you to display multiple elements based on an array, while keys help React identify which items have changed, are added, or are removed.

"I want to display a list of items without rewriting the same code over and over."

In React, lists allow you to display multiple elements based on an array, while keys help React identify which items have changed, are added, or are removed.