Blog Posts About JavaScript


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.