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Course Introduction：There are three main ways to detect browser support for HTML5 functions: using Modernizr library, manual detection in native JavaScript, and paying attention to privacy mode and security restrictions. First, the Modernizr library is introduced to add a class that supports features to the tag and provides a JavaScript interface to determine whether the features are available, such as if (Modernizr.canvas). Secondly, native JavaScript detection can check whether an object or method exists, such as using the function support LocalStorage() to detect local storage, or supporting VideoFormat() to detect video format support. Finally, note

2025-07-02 comment 0  825

Course Introduction：Imagick PHP extension library details: Add text watermark to images This article will explain how to use PHP's Imagick extension library to add text watermarks to images. We will explore a variety of methods, including simple text overlay, creating transparent text watermarks using font masks, and more advanced text tiling techniques. Key points: Imagick is a powerful PHP extension library that can be used to process images, including adding text watermarks. Text watermarking can be achieved by creating an Imagick class instance, reading an image, setting the font properties using the ImagickDraw instance, and then adding text to the image using the annotateImage() method. There are many ways to add text

2025-02-25 comment 0  324

Course Introduction：Core points App Framework is a JavaScript library that allows the creation of rich HTML5/JavaScript mobile applications inspired by jQuery but has a much lower memory footprint than jQuery Mobile. On both Android and iOS platforms, App Framework is faster than jQuery and more powerful, making it a powerful solution for mobile HTML5 frameworks. This tutorial walks you step by step how to create HTML5 mobile applications using the App Framework, from setting up Apache and PHP servers to creating dynamic GUIs. App Framework provides

2025-02-22 comment 0  743

Course Introduction：Key Points PHP's array interface allows programmers to simulate the characteristics of native data types in custom classes, similar to Python's methods. This enables custom classes to work like arrays and allows common array operations such as counting elements, looping through elements, and accessing elements through indexes. An interface is like a contract for a class, specifying the methods that a class must contain. They allow encapsulation of implementation details and provide syntax sugar, thereby improving the readability and maintainability of the code. PHP provides a library of predefined interfaces that can implement these interfaces to make objects similar to arrays. Countable, ArrayAccess and Iterator interfaces in PHP allow objects to pass cou respectively

2025-02-22 comment 0  495

Course Introduction：Composer is a PHP dependency management tool that manages project dependencies through composer.json file. 1. Install Composer: Run several commands and move them to the global path. 2. Configure Composer: Create composer.json file in the project root directory and run composerinstall. 3. Dependency management: Specify the library and its version through composer.json, and use semantic version number control. 4. Use Autoloading: Define the automatic loading rules of the class through the autoload field to simplify development. 5. Package management: Supports private library management, defines the private library address through the repositories field

2025-04-18 comment 0  989

Course Elementary  13742

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  82250

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  13130

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  24578

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  27435

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.