Tag: React

All the articles with the tag "React".

• How to Test Props in React with Jest

  Updated:Oct 18, 2023 |  at 04:16 PM

• How to solve ”variable is possibly undefined” in TypeScript - even when it’s defined

  Updated:Apr 1, 2023 |  at 03:11 PM

  Learn how to solve the "variable is possibly undefined" error in TypeScript and avoid nesting with ternary operators in React

• How to Make Next.js 13 More SEO-Friendly

  Updated:Mar 10, 2023 |  at 02:04 PM

  Are you struggling with getting your Next.js 13 app to rank well on search engines? I’ll show you some essential SEO optimizations that you can implement.

• Mocking GraphQL response for React components using MockedProvider

  Updated:Feb 26, 2023 |  at 06:06 PM

  In GraphQL-powered React apps, testing component behavior based on GraphQL data is a common scenario. Let's see how to achieve that with MockedProvider.

• How to Write Stronger Unit Tests with Jest

  Updated:Jun 14, 2023 |  at 10:08 AM

  We'll explore why weak tests can leave changes in behavior to land unnoticeably and what we can do to catch these changes early.

• How to Test Custom Hooks with React Testing Library and Jest

  Updated:Jun 14, 2023 |  at 10:08 AM

  Learn how to test your custom React Hooks with React Testing Library and Jest. You'll find an interactive Codesandox at the end of the post.