How To Dev

Introduction This is a comprehensive page about the technologies I have shared in series format. You can view brief introductions and links to directly access each series you are interested in. In the field of software development, to deploy a product from the initial idea to its release, the standard process typically involves several stages as follows: Database : Designing and implementing the database according to business requirements, storing data during the system's operation. Backend : Handling the main logic of the system, communicating with the database and services. Frontend : Building the interface for users to interact with the system, which could be a desktop, mobile, or web application. This usually includes implementing UI/UX and integrating APIs from the backend. DevOps : Deploying the system for use, which can be done on a server or in the cloud. Testing : Applying testing methods to ensure the product meets the standards for release. Of course, these are just stan...

Introduction Test-Driven Development (TDD) is an advanced software development methodology where tests are written before the actual source code is implemented. This process operates in a repetitive cycle: Red (Write a failing test) -> Green (Write the minimum source code to make the test pass) -> Refactor (Optimize the code structure). Advantages : Improve source code quality: Minimize potential bugs right from the initial development phase. Better system design: Thinking about testing first helps you build highly modular, loosely coupled and easy-to-maintain modules. Confident Refactoring: You can comfortably improve and optimize code without fear of breaking existing features, thanks to the automated test system protection. Living documentation: Test cases act as precise specification documentation, helping team members clearly understand how the system operates. Reduce Debugging Time : TDD helps detect errors right at the moment "just finished typing". The c...

Introduction In this article, I will guide you on adding Jest (currently the most popular testing library) to test for projects using the NextJS framework. This integration helps developers automate the source code testing process, from logical functions (Unit Testing) to user interface testing (Integration Testing) in the Node.js environment. Here are the prominent advantages: Fast and effective: Jest runs tests in parallel, saving significant time as the project scales. Built-in Support: Next.js provides the next/jest configuration, making setup extremely simple, automatically handling CSS files, images, and framework-specific features. Excellent Watch Mode: Jest has the ability to detect recently changed files and only run related tests, keeping the development workflow smooth. Coverage Reports: This tool has built-in capability to statistic the percentage of source code tested, helping you assess application quality and reliability visually. Rich ecosystem: When combined with React...