Found a total of 10000 related content
Strategies for Unit Testing and Integration Testing in Python
Article Introduction：Writing good unit tests and integration tests is the key to ensuring the quality of Python projects. Unit testing starts from small things to verify whether the function behavior meets expectations. It is recommended that each function covers normal, boundary and exceptional situations, and use mock to isolate external dependencies; integration testing starts from the overall perspective to verify whether the collaboration between modules is smooth, and test clients and test data are commonly used to simulate real processes; test coverage should not blindly pursue high scores, but should pay attention to core logic and avoid formalism. Mastering these key points can effectively improve code stability and maintainability.
2025-07-05
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543
Mastering JavaScript Closures with practical examples
Article Introduction：Closures are the mechanism in JavaScript for functions to remember their lexical scope, even if the scope has been executed. 1. Closures allow functions to access and remember external variables; 2. Commonly used in data encapsulation, function factories and asynchronous operations; 3. Examples include creating counters with private state; 4. Pay attention to traps in loops and asynchronous code when using them, such as using let or IIFE to solve closure capture problems. In short, closures are a combination of functions and their lexical environments, and are a key tool for building modules and maintaining states.
2025-07-08
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721
How to dispatch an action?
Article Introduction：To correctly use dispatchaction in Redux, you need to pay attention to the following points: 1. Select the correct dispatch method according to the usage scenario. UseDispatch() is commonly used in the component, and store calls store.dispatch() in a separate file; 2. The action must be an object containing the type field or generated by the actioncreator. If you use ReduxToolkit, you should call the generated actioncreator first; 3. Asynchronous operations require the introduction of middleware such as ReduxThunk or Saga, otherwise the dispatch function cannot be dispatched; 4. The type naming of action is recommended to adopt
2025-07-03
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192
What are Open Graph meta tags (og:title, og:image)?
Article Introduction：The function of OpenGraphmeta tag is to make web pages more beautiful and professional when sharing on social platforms. It defines attractive titles through og:title, such as changing the original title to a more attractive copy; og:image specifies the image displayed during sharing, and the recommended size is 1200x630 pixels and uses an absolute path; other commonly used tags include og:type specifying the page type, og:url declaration URL, og:description supplementary description, og:site_name displaying the website name. These tags need to be added to the web page to improve sharing performance.
2025-07-09
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588
Steps to deploy a PHP environment on a cloud server
Article Introduction：The steps to deploy a PHP environment to a cloud server include: 1. Select the appropriate cloud service provider and server configuration; 2. Install PHP and commonly used extensions; 3. Configure the web server and site directory; 4. Set up the database and test the connection. First, you should choose a service provider with one-click mirror installation function. It is recommended to configure it at least 1 core 2G memory and 20GB system disk; secondly, use apt on Ubuntu to install PHP and necessary extensions, and verify whether the installation is successful; then put the project into the default website root directory and set permissions, or configure the virtual host as needed; finally install MySQL or MariaDB, create a database and user, and test whether the environment is running normally through the phpinfo() page. Pay attention to permissions and service retention in the whole process.
2025-06-27
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1019
Dave The Diver: How To Catch Spider Crabs
Article Introduction：In Dave The Diver, there are some creatures that are not easy to catch. Or, catch alive that is. The spider crab is one of those very species, making it seem like the only way to bring these crustaceans back up to land is to viciously crack them up w
2025-01-10
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777
Prepare for Interview Like a Pro with Interview Questions CLI
Article Introduction：Prepare for Interview Like a Pro with Interview Questions CLI
What is the Interview Questions CLI?
The Interview Questions CLI is a command-line tool designed for JavaScript learners and developers who want to enhance their interview
2025-01-10
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1405
Soft Deletes in Databases: To Use or Not to Use?
Article Introduction：Soft Deletes: A Question of DesignThe topic of soft deletes, a mechanism that "flags" records as deleted instead of physically removing them, has...
2025-01-10
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1025
Terraria: How To Make A Loom
Article Introduction：There are a lot of crafting stations that you can make in Terraria. This ranges from simple anvils to unique stations meant for one specific type of resource. Early into the game, you'll be able to make your own Loom, which is primarily used to make
2025-01-10
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1298
