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Course Introduction：Introduction: Testing stopPropagation() in React Correctly implementing stopPropagation() is vital when dealing with nested click events in React. Instead of directly verifying stopPropagation()'s call, focus on testing its outcome: does the event

2025-01-29 comment 0  811

Course Introduction：To build a MySQL database testing framework, you need to select the right tools, design good use cases, automate execution and cover key scenarios. 1. The tool selection should be selected based on the team's technical stack. For example, MySQL comes with test-run for simple testing, PyTest is suitable for complex logic, JMeter focuses on performance, and DBUnit is suitable for Java ecosystem. 2. The test content should cover the table structure, SQL syntax, stored procedure results, transaction processing and performance boundaries. 3. The test data should be clean and controllable, and can be implemented through transaction rollback, fixed data insertion or mock data. 4. Automated testing should be integrated into the CI/CD process, and the test execution should be triggered through scripts and the results should be output.

2025-07-21 comment 0  833

Course Introduction：When I test a custom hook component, I use a renderHook imported from @testing-library/react' and an act imported fromreact-dom/test-utils'. ?src/App.tsx import "./App.css"; import Counter from "./component/counter/Counter";

2024-11-01 comment 0  1041

Course Introduction：When I test current code, which is unit test, I use some tools. They are jest and react-testing-library. ?src/Example.js import Greet from "./components/Greet"; const Example = () => { return ; }; export default Example; ?s

2024-10-20 comment 0  327

Course Introduction：The article discusses various testing libraries for Vue.js, focusing on their features and suitability. The main argument is that @testing-library/vue with Jest is recommended for its user-centric approach and strong community support.

2025-03-27 comment 0  789

Course Elementary  13825

Course Introduction：Scala Tutorial Scala is a multi-paradigm programming language, designed to integrate various features of object-oriented programming and functional programming.

Course Elementary  82364

Course Introduction："CSS Online Manual" is the official CSS online reference manual. This CSS online development manual contains various CSS properties, definitions, usage methods, example operations, etc. It is an indispensable online query manual for WEB programming learners and developers! CSS: Cascading Style Sheets (English full name: Cascading Style Sheets) is an application used to express HTML (Standard Universal Markup Language).

Course Elementary  13182

Course Introduction：SVG is a markup language for vector graphics in HTML5. It maintains powerful drawing capabilities and at the same time has a very high-end interface to operate graphics by directly operating Dom nodes. This "SVG Tutorial" is intended to allow students to master the SVG language and some of its corresponding APIs, combined with the knowledge of 2D drawing, so that students can render and control complex graphics on the page.

Course Elementary  24630

Course Introduction：In the "AngularJS Chinese Reference Manual", AngularJS extends HTML with new attributes and expressions. AngularJS can build a single page application (SPAs: Single Page Applications). AngularJS is very easy to learn.

Course Elementary  27489

Course Introduction：Go is a new language, a concurrent, garbage-collected, fast-compiled language. It can compile a large Go program in a few seconds on a single computer. Go provides a model for software construction that makes dependency analysis easier and avoids most C-style include files and library headers. Go is a statically typed language, and its type system has no hierarchy. Therefore users do not need to spend time defining relationships between types, which feels more lightweight than typical object-oriented languages. Go is a completely garbage-collected language and provides basic support for concurrent execution and communication. By its design, Go is intended to provide a method for constructing system software on multi-core machines.