Mastering React Component Re-rendering in Jest
In this hands-on guide, we’ll explore the art of optimizing React component re-rendering within Jest tests. By combining theory with practical coding examples, you’ll gain a deep…
Eliminating Nesting Loops in React Rendering
React has ushered in a new era of web application development with its component-based structure, promoting code reusability and maintainability. But as projects evolve, achieving optimal performance…
How To Re-render React Components in Jest
Re-rendering a component is an important part of testing, especially when you are testing stateful components. Jest, React Testing Library and Enzyme provide methods to re-render components…
Test responsive design using jest and react-testing-library
Testing design breakpoints in React applications is an important aspect of front-end development. It ensures that the components look and behave as expected on different screen sizes….
Testing React-Query with Jest and React-testing-library
Introduction In this article we will cover the basic usage of testing useQuery hook from tanstack/react-query library, along with how to test it using jest and react-testing-library….
Looping through Javascript Map object in React
In ReactJS, you can loop over a map using Object.entries() method to convert the Map object into an array of key-value pairs, and then use the map()…
The basic guide for React Query useMutation hook
React Query is a popular library for fetching, caching, and updating asynchronous data in React applications. It provides a number of hooks, including useMutation that allows you…
Submit formik form using React-Query mutations
In this article you will learn how to create forms using Formik library, and how to submit the forms using React-Query mutation hook. We will cover the…
How to mock and test Intl.DateTimeFormat in Jest
Intl.DateTimeFormat provides powerful functionalities to format dates. This article demonstrates how to mock and test Intl.DateTimeFormat with Jest. Example Consider we have the following function that does…