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Course Introduction：JS & jQuery Fail to Detect HTML Elements, Reporting UndefinedWhile attempting to create a subtitles player with JavaScript and jQuery, you may encounter an issue where the code fails to locate the desired HTML elements. When attempting to display

2024-10-18 comment 0  365

Course Introduction：The file extension is a suffix at the end of the file name and is used to indicate the file type. It is usually located after a point after a file name, such as .docx or .jpg, which helps computers and users identify how to process files. First, the file extension tells the operating system which program to use to open the file. For example, the .mp3 file is opened by the music player, while the .xlsx file is opened by Excel; secondly, they are also important in terms of security and can help identify malicious files such as document.pdf.exe; common extensions include document class .docx, .pdf, image class .jpg, .png, audio/video class .mp3, .mp4, code class .js, .py, and compressed file class .zi

2025-07-20 comment 0  351

Course Introduction：SqlParameter Parameters.Add vs. AddWithValue: Choosing the Best MethodWhen working with SQL commands, you may encounter the need to add...

2025-01-10 comment 0  675

Course 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 comment 0  823

Course Introduction：Conditional Column CountingConsider a table named "Jobs" structured as follows:jobId, jobName, Prioritywhere "Priority" is an integer between 1...

2025-01-10 comment 0  830

Course Elementary  13779

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  82295

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  13148

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  24595

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  27455

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.