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Article Introduction：Nginx's functionality can be extended through Lua scripts and custom modules. 1) Use the ngx_http_lua_module module to execute Lua code in Nginx to implement dynamic configuration and complex request processing. 2) Develop custom modules using C language, directly interact with Nginx core, and implement underlying function extensions, such as adding HTTP headers.

2025-03-31 comment 0  724

Article Introduction：Bootstrap's list style can be customized through custom CSS classes. The basic classes include: unordered list (<ul>), ordered list (<ol>) and inline list (<ul class="list-inline">). By adding custom classes, you can modify the list style, such as removing marks, adding colors, icons, and spacing. Advanced tips include using the :nth-child() selector to implement interlaced color discoloration, and using Sass or Less preprocessors to simplify the code. When customizing, maintain style consistency and avoid over-customization.

2025-04-07 comment 0  736

Article Introduction：Using Custom Code to Label Bar Chart GroupsTo add group labels to a bar chart, one approach that can be considered, especially if a native...

2024-11-17 comment 0  510

Article Introduction：To create a custom error type, you need to define a type that implements the Error() string method, such as adding metadata using a structure, or creating lightweight errors with a string type, 1. Define a struct containing Code, Message, Details fields and implement an Error method, 2. Can embed the error field to implement error wrappers, 3. Implement the Unwrap method to support errors.As and errors.Is, 4. Return a pointer to ensure that the method is called correctly, 5. For simple scenarios, you can define a string type and implement an Error method, which ultimately makes the error programmable and rich in context.

2025-07-28 comment 0  191

Article Introduction：Modal windows and light boxes can implement basic functions through pure CSS without JavaScript. 1. Use: The target pseudo-class can control the display status based on URL anchor points. The advantage is that there is no script required, but the mask cannot be closed; 2. Use hidden checkbox and label to achieve more flexible interaction, such as clicking mask to close and adding animation transitions; 3. Pay attention to optimization details such as compatibility, accessibility (such as adding aria-label), and preventing background scrolling (using overflow:hidden). The two methods have their own applicable scenarios, suitable for static pages or lightweight projects.

2025-07-12 comment 0  1013

Article Introduction：In this tutorial, I will show you how easy it is to extend the HTML language with custom tags. The custom tags can be used to implement various behaviors, so they are a very convenient way to write less code and keep your HTML documents simpler.To go

2025-03-02 comment 0  674

Article Introduction：Do you want to add content to your WordPressRSS feed? WordPressRSS feed displays the content of your recent posts. However, by default, there is no option to customize the content for RSS source users. In this article, we will show you how to easily add content and operate your WordPressRSS feed completely. Here is a quick overview of what we will cover in this article: Adding custom content to WordPressRSS feed (Easy way) Adding content to WordPressRSS feed with code to custom fields

2025-04-20 comment 0  563

Article Introduction：Creating Custom Callbacks in JavaScriptTo execute a callback function after a current function execution completes, you can implement a callback...

2024-11-11 comment 0  1101

Article Introduction：Methods to define custom error types include: 1. Create a structure and implement the Error() method; 2. Extend the structure field to carry more information such as error codes and operation names; 3. Use fmt.Errorf and %w to wrap the original error to preserve the stack information. In Go language, you can create a basic custom error type by defining structure types such as MyError or AppError and implementing the Error() string method. You can also expand error information by adding fields such as Code and Op; for advanced usage, you can use fmt.Errorf to combine with %w to wrap the original error into a new error, and use errors.Unwrap or errors.As to extract the original error;

2025-07-06 comment 0  295

Article Introduction：WordPress’s Buy Now button needs to be implemented with plugins or code, and is essentially a workaround. First, you need to know WordPress themes, plugins, and basic PHP/HTML knowledge. Using the WooCommerce plugin directly may require custom code or specific plugins. A safer way is to write custom functions using the WooCommerce API. Advanced features also include custom button styles, adding load animations, and data verification. Pay attention to conflict, security, and compatibility issues, debug and make good use of WordPress debugging tools in a test environment.

2025-04-20 comment 0  595

Article Introduction：In WordPress, when adding a custom article type or modifying the fixed link structure, you need to manually refresh the rewrite rules. At this time, you can call the flush_rewrite_rules() function through the code to implement it. 1. This function can be added to the theme or plug-in activation hook to automatically refresh; 2. Execute only once when necessary, such as adding CPT, taxonomy or modifying the link structure; 3. Avoid frequent calls to avoid affecting performance; 4. In a multi-site environment, refresh each site separately as appropriate; 5. Some hosting environments may restrict the storage of rules. In addition, clicking Save to access the "Settings>Pinned Links" page can also trigger refresh, suitable for non-automated scenarios.

2025-06-27 comment 0  475

Article Introduction：The defineModel macro solves the redundant code problem when custom components implement v-model in Vue3.4. 1. It automatically creates modelValueprop and update:modelValue events in it, 2. Supports custom attribute names and event names through parameters, 3. It can pass options such as types and default values, 4. As a compile-time macro, eliminates runtime overhead, 5. Makes the two-way binding of parent-child components more concise and efficient, and ultimately achieves less code, the same behavior, and clearer intentions.

2025-07-30 comment 0  873

Article Introduction：There are two main ways to use JavaScript to implement page scrolling to a specified location. 1. Use the scrollIntoView method to directly call the scrollIntoView() of the target element, which can set smooth scrolling and alignment; 2. Use window.scrollTo with getBoundingClientRect() to dynamically calculate the position, which is suitable for adding custom logic such as offsets; in addition, you need to pay attention to compatibility, element loading order and event trigger optimization problems.

2025-07-17 comment 0  647

Article Introduction：Core points Monkey patch (MP) in JavaScript is a technology that allows programmers to override, extend, or suppress the default behavior of code segments without changing their original source code. While MP is often considered a bad practice, it can be used as a useful tool for modifying third-party code to suit specific needs, especially if the original source code cannot be changed. MP can be used to overwrite existing functions with custom behavior, enhance methods by adding custom behavior before or after the original code, or intercept Ajax calls to modify their behavior. MP should be used with caution, as it can lead to unpredictable behavior and conflicts in the code, especially if patched methods are used elsewhere in the code base. Despite the potential

2025-02-17 comment 0  592

Article Introduction：The core of creating custom exceptions in C# is to inherit the Exception class or its subclasses to improve the accuracy of error messages and code maintainability. 1. Custom exceptions can more specifically express error scenarios in business logic, such as InvalidLoginException clearly indicates login problems; 2. Its benefits include improving code readability, better distinguishing error types, and conveniently handling specific exceptions in a unified manner; 3. When creating, you need to inherit the Exception class and implement at least three constructors without parameters, with message parameters, with message and internal exceptions; 4. If serialization support is required, you can implement the ISerializable interface; 5. Throw it when a specific error condition is detected, such as using thrown when verification fails.

2025-07-20 comment 0  953

Article Introduction：C polymorphism is divided into compile-time and run-time, which are implemented through function overloading, templates and virtual functions. Polymorphism makes the code more flexible and scalable, such as adding new shape types to a drawing program. To implement commonly used virtual functions of polymorphism, you need to pay attention to using virtual destructors and override keywords.

2025-06-26 comment 0  634

Article Introduction：Yes, it is easy to build reverse proxy with Go. 1. First, use NewSingleHostReverseProxy to create a proxy pointing to the target service by importing net/http/httputil and net/url packages; 2. Set up an HTTP server in the main function and forward the request to the backend through proxy.ServeHTTP; 3. You can modify the request header through a custom Director function, such as adding the X-Forwarded-By identifier; 4. Use the ModifyResponse function to process the response, such as setting the response header or recording status code; 5. You can superimpose middleware to implement logging, authentication and other functions, such as encapsulating loggi

2025-07-25 comment 0  854

Article Introduction：The core of custom loggingHandler is to inherit logging.Handler and implement the emit() method, which is suitable for scenarios such as sending logs to emails, writing to databases, or pushing remote servers. 1. The situations that need to be customized include: pushing logs to Slack or DingTalk, recording to database or API, processing by level, and adding additional information; 2. The implementation method is to inherit logging.Handler and rewriting emit(), where you write custom logic such as sending HTTP requests; 3. When using it, you need to pay attention to exception handling, formatting output, setting appropriate levels and formatters, and avoid duplicate output and propagation problems.

2025-07-24 comment 0  761

Article Introduction：Common annotations for JavaBeanValidation include: 1.@NotNull verification field is not empty; 2.@NotBlank verification string is not blank; 3.@Size limits length or size; 4.@Min/@Max controls the numerical range; 5.@Email checks the mailbox format; verification triggers can be added by adding @Valid before SpringMVC's Controller parameters and matching BindingResult; custom constraints need to create annotations and implement the ConstraintValidator interface; verification packets can be used to verify different scenarios by specifying groups attributes and defining interfaces.

2025-07-21 comment 0  682

Article Introduction：There are four common ways to clear floats: 1. Use clear: both to match empty elements, and implement them by adding extra HTML elements. The advantage is that they are simple and compatibility, but the disadvantage is that they are not semantic enough; 2. Use pseudo-element::after to clear floats, and implement them by adding clearfix class to the parent container, which is recommended for modern projects; 3. Use overflow attributes, the code is concise but may hide overflow content; 4. Use Flexbox or Grid layout, as a modern alternative, there is no need to clear floats, and the layout is more flexible but incompatible with old browsers. Compatibility, structure and maintenance costs must be considered comprehensively when selecting a method.

2025-07-26 comment 0  819