Article Tags
Article Tags
Node.js Express Server Startup and Basic Configuration Guide
This article aims to solve the common problem of unresponsive Node.js Express server startup and provide a standard server initialization and routing configuration process. Through detailed code examples, it explains how to correctly introduce Express, create application instances, set listening ports and handle HTTP requests. It also emphasizes the importance of initializing Express applications and using the app.listen() method to ensure that your Node.js server can start smoothly and respond to requests.
Jan 13, 2026 am 08:30 AM
Correctly switch CSS classes for SVG elements using JavaScript
This article addresses an issue where using JavaScript's classList.toggle() method does not correctly toggle CSS classes for SVG elements. By analyzing common causes and providing solutions, it helps developers understand how to correctly operate the styles of SVG elements and achieve the expected interactive effects.
Jan 13, 2026 am 08:18 AM
How to make Tom Select appear empty when initialized (no default selected items)
Tom Select will automatically select the first one by default. If you need to initialize it to an empty state, you should set an empty value for the first option and match the placeholder text, and remove allowEmptyOption: true; you can also call the clear() method to manually clear it, but the former is recommended to ensure data consistency and correct form semantics.
Jan 13, 2026 am 08:00 AM
Correct way to implement random image selection in JavaScript game mods
This tutorial aims to solve common problems encountered when implementing random image selection in JavaScript game modules, especially the incorrect usage of the Math.random() function and switch statements. We will explain in detail how to correctly generate random integers within a specified range, and combine it with the switch statement to implement image selection logic based on random results to ensure that the random effect works as expected.
Jan 13, 2026 am 07:18 AM
Angular 14 to 16 upgrade: Dependency conflicts and Ivy compatibility resolution
This article provides solutions to dependency package compatibility errors that occur after upgrading Angular applications from v14 to v16. The key point is to avoid using the --force flag and it is recommended to ensure a smooth upgrade by checking third-party library compatibility one by one, utilizing the npm outdated command and following the official Angular upgrade guide. The article also covers the Ivy compatibility checking method, which is designed to help developers efficiently handle dependency conflicts during upgrades.
Jan 13, 2026 am 06:48 AM
Reasons and solutions for useEffect being triggered twice in development mode in React
Enabling Strict Mode in React development mode causes useEffect to simulate an unmount/remount, thus executing twice; this is design behavior, not a bug, and is intended to help find side effect cleanup issues. This behavior does not occur in production builds.
Jan 13, 2026 am 06:39 AM
JavaScript: Convert string to array
This article explains how to use JavaScript to convert a string in a specific format into a two-dimensional array. Through string processing and regular expressions, we decompose the original string into an accessible array structure to facilitate subsequent data processing and operations.
Jan 13, 2026 am 06:24 AM
A practical guide to integrating @svgr/webpack and Turbopack in Next.js
This tutorial aims to solve the SVG parsing error that occurs during @svgr/webpack integration in Next.js project when experimental Turbopack is enabled. The core solution is to explicitly instruct Turbopack to treat SVG files processed by @svgr/webpack as JavaScript modules rather than raw SVG images by configuring experimental.turbo.rules in next.config.js, thereby avoiding conflicts caused by Next.js trying to obtain the dimensions of the SVG that has been converted to a React component.
Jan 13, 2026 am 05:51 AM
Unified loop processing strategy when JSON data structure in JavaScript is inconsistent
This tutorial aims to solve the loop traversal problem caused by the inconsistency between the structure of a single record and multiple records when obtaining data from a JSON data source in a JavaScript application. By introducing a concise normalization step after data parsing, we ensure that whether the original data is a pure object or a collection of objects indexed by a numerical key, it can be unified into an iterable format. This allows developers to use consistent loop logic, improving code robustness and maintainability.
Jan 13, 2026 am 05:24 AM
Dynamically adapt to container width: JavaScript implements intelligent truncation and omission of text
This article aims to introduce how to use JavaScript to dynamically truncate long text, make it intelligently adapt to containers of different widths, and effectively avoid content overflow by adding ellipses at the end of the text, while keeping the user interface clean and professional. The tutorial will elaborate on the core implementation logic, key CSS properties and their functions, and provide directly usable code examples to help developers build more responsive user interfaces.
Jan 13, 2026 am 05:18 AM
Tutorial on preventing automatic conversion of date format when Bootstrap Table is exported to Excel
When using Bootstrap Table to export data to Excel or CSV, text in the form of numbers or fractions (such as "5/10") may be automatically recognized by Excel and converted to date format (such as "10-May"). This tutorial will introduce in detail how to use the exportOptions configuration of Bootstrap Table to force specific columns to be specified as text format through the cellFormat function of tableExport.jquery.plugin, thereby effectively preventing this automatic conversion and ensuring the original accuracy of the exported data.
Jan 13, 2026 am 05:06 AM
Dynamically access JSON object fields: use square bracket syntax to implement dynamic binding of attribute names
This article explains in detail how to safely and concisely access the properties of a JSON object through string variables (such as field names read in an array) in JavaScript, avoiding lengthy if judgment chains, and providing a maintainable and scalable DOM update solution.
Jan 13, 2026 am 05:03 AM
Discord Bot development: implementing role-based dynamic command response
This article will provide detailed guidance on how to implement a dynamic command response mechanism based on user roles in Discord bots. By building a configuration object that maps role IDs to specific parameters, the tutorial shows how to write efficient and scalable code so that a single command can perform differentiated functions or provide different rewards based on the different roles the user has, thereby improving the robot's flexibility and user experience.
Jan 13, 2026 am 05:00 AM
Avoid immediate execution when a function is pushed into an array in JavaScript
This article aims to solve the problem of immediate execution of functions when pushed into an array in JavaScript. By pushing function references instead of function calls into the array, combined with the Promise.all() method, you can implement delayed execution of functions to better control the execution timing of asynchronous tasks. This article will provide detailed sample code and explanations to help readers understand and apply this technique.
Jan 13, 2026 am 04:42 AM
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