Blog

Learn the fundamentals of React Testing Library - how to render components, query elements, and write tests that focus on user behavior rather than implementation details.

Learn how to use few-shot prompting to guide LLM behavior through examples. Understand zero-shot, one-shot, and few-shot techniques with practical applications.

Master testing user interactions in React - learn the differences between fireEvent and userEvent, and how to test clicks, inputs, forms, and keyboard events.

Learn how TypeScript's type narrowing helps you write safer code by automatically refining types based on runtime checks.

Master the fundamentals of prompt engineering with five essential principles: Give Direction, Specify Format, Provide Examples, Evaluate Quality, and Divide Labor.

Learn how to test React components that fetch data using Mock Service Worker (MSW) - a powerful approach to mocking API calls at the network level.

Learn how to test React custom hooks using renderHook from Testing Library - covering state updates, async operations, and common patterns.

Learn effective mocking strategies for React tests - from mocking modules and components to spying on functions and handling common scenarios.

Understand when and how to use snapshot testing effectively in React - including inline snapshots, custom serializers, and common anti-patterns to avoid.

Learn how to write end-to-end tests for React applications using Playwright - covering setup, selectors, assertions, and testing real user workflows.