Course Introduction：Query Table with Multiple Comma-Separated Values in a ColumnIn this scenario, you have a table with a column that contains comma-separated values,...
2024-12-24 comment 0 529
Course Introduction：Inserting Values from Another Table with Default Values in MySQLYou want to insert data into a table named def by selecting specific values from...
2024-11-26 comment 0 1141
Course Introduction：Updating a Column with Values from Another Table in MySQLThe goal is to populate the "value" column in "tableB" with corresponding values from...
2025-01-17 comment 0 635
Course Introduction：Simple mouse draggable div compatible with IE/FF
2016-06-24 comment 0 1414
Course Introduction：To implement the draggable function of web page elements, using HTML5's draggable attribute is a direct method. The specific steps are as follows: 1. Add draggable="true" to the target element to enable the drag function; 2. For ordinary elements (such as divs), you need to cooperate with JavaScript event processing, such as setting data in dragstart; 3. Enhance visual feedback through CSS, such as hover and active state to adjust transparency; 4. Pay attention to compatibility and details, such as poor mobile support or browser default behavior to prevent dragging, you need to use e.preventDefault() to handle it; 5. It is recommended to use professional libraries such as ReactD in complex scenarios.
2025-07-04 comment 0 754
Course Elementary 13766
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 82276
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 13141
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 24589
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 27445
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.
2017-05-16 16:47:32 0 1 432
Store the position of the draggable DIV in an HTML table and save it to a MySQL database
2024-02-03 18:37:10 0 1 500
Can a letter variable be attached with two values?
Can a letter variable be attached with two values, numerical and text?
2020-02-24 09:20:26 0 0 1165
php - Yii relational table with optimized query to avoid N+1 query questions
2017-06-10 09:47:45 0 2 1372
2024-04-06 21:23:40 0 2 1282
