Blog Posts About JavaScript

Share logic in your React package with support for both custom Hooks and class components by using the Hydra pattern.

Learn how the new JavaScript rest and spread syntax can simplify your code and reduce visual clutter.

Standing up your app in a test environment before taking an image snapshot can be a struggle, especially if the app is driven by disparate data sources. Learn about a testing recipe we have adopted at American Express that uses jest-image-snapshot and Parrot to write image snapshot tests in a consistent and reliable way.

Clean code is a consistent style of programming that makes your code easier to write, read, and maintain. Discover how to make your React code cleaner using easy-to-follow examples.

In React, Render Callbacks are a powerful alternative to Higher-Order Components (HOCs). Learn why you should avoid using one of the most popular implementations, Function as Child Components, and discover better solutions like Render Props and Component Injection.