Course Introduction：div css jQuery image horizontal scrolling code (with left and right click buttons)
2016-06-24 comment 0 1519
Course Introduction：Quickly create a website back to top scrolling function (set time: 2 minutes) This guide will guide you step by step how to set up the Back to Top feature on your website. Just scroll down this page to view the demo. Download the scrollTo plugin and include it. Get an image (arrow or similar). Contains the following HTML code. Contains the following jQuery/JavaScript code to capture window scrolling and process the display of images. It's that simple! HTML jQuery This jQuery code displays the image when the user scrolls down, hides the image when scrolling up, and processes click events. $(document).ready(funct
2025-02-24 comment 0 885
Course Introduction：Ten free virtual image generators to help you quickly create web page prototypes Rather than creating placeholder images manually, save time with free automation services. Here are ten tools that generate virtual images immediately, especially for web designers who prefer to quickly create different layouts or responsive image layout prototypes. Update: June 20, 2013: Added pixelholdr and topped it. pixelholdr I put pixelholdr at the top of the list because it will search for Flickr using your keywords and grab a placeholder image for you. great! Source Code Demo fakeimage A similar to dummyimage.c
2025-02-26 comment 0 695
Course Introduction：How to use Element-UI in Vue to implement multi-stage linkage drop-down boxes? Use multiple El-Select components to bind data through v-model and use logic to control dynamic changes in options. Use a recursive function to efficiently generate and update the option list, dynamically update the options for subsequent drop-down boxes based on the selection results. Pay attention to the design of the data structure. A clear data structure can simplify the code logic. Considering performance issues when the data volume is large, use tree structure or virtual scrolling technology to optimize rendering. Handle errors to avoid program crashes. Pay attention to the readability and maintainability of the code, use meaningful variable names, add comments, and split the code into small, reusable functions.
2025-04-07 comment 0 444
Course Introduction：The key to JavaScript application performance optimization is to reduce DOM operations, rational use of anti-shake throttling, lazy resource loading, cache and multiplexing calculation results. 1. Reduce unnecessary DOM operations, merge updates, use document fragments or strings to splice HTML content to reduce re-arrangement and redrawing; 2. Use anti-shake (such as search box input) and throttling (such as scrolling monitoring) to control execution frequency; 3. Lazy loading resources, control script loading, IntersectionObserver to achieve lazy image loading, routing-level code segmentation to reduce the loading pressure on the first screen; 4. Use cache to avoid repeated calculations, including variable multiplexing, API request local cache, and function return value memoi
2025-07-07 comment 0 212
Course Elementary 13745
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 82260
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 27436
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.
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