Course Introduction：Using HTML5 elements can easily implement input suggestions. 1. By associating the list attribute with the id, native drop-down suggestions can be implemented; 2. Support input types such as text, search, url, etc., but the browser supports different levels of support; 3. You can dynamically update options through JavaScript, but the style is limited to the browser's default style; 4. Compared with JavaScript plug-in, it is lighter and requires no dependencies, but lacks advanced functions such as remote loading and keyword highlighting, and is suitable for simple local suggestions.
2025-07-14 comment 0 349
Course Introduction：The key to creating an automatic completion drop-down box using HTML5's datalist element is to correctly associate and relate. 1. The basic structure is: to set the list attribute and match the id; 2. The supported input types include text, search, number, range, date, etc., but non-text types may have poor compatibility on the mobile side; 3. The options can be dynamically filled with JavaScript, but performance optimization needs to be paid attention to; 4. The mainstream browsers have good support, and old devices can consider polyfill or custom solutions instead.
2025-07-02 comment 0 151
Course Introduction：BootstrapNavbar provides a variety of advanced usage and tricks to optimize the user experience. 1. Dynamically adjust the style of Navbar: Use JavaScript to change the background color or transparency. 2. Add search box: Integrate search functions to improve the convenience of finding content. 3. Use the drop-down menu: Show more options in a limited space. 4. Responsive design: Adjust the display effect on different devices through CSS media query. These methods can improve the user experience, but pay attention to performance and maintenance.
2025-07-04 comment 0 969
Course Introduction：:focus is used to directly focus the element itself, and :focus-within is used to affect the parent container when the child element gets focus. 1.: focus only takes effect on the current element and is often used for input box highlighting; 2.: focus-within is applied to containers containing interactive elements, and when their child elements are focused, triggering style changes, such as the overall highlighting of form groups or search box; 3. When using it, you should ensure accessibility, retain clear focus indicators, and combine them with keyboard navigation tests. Together, the two improve the usability and user experience of the interface.
2025-06-27 comment 0 352
Course Introduction：The most direct way to make the input box in the HTML form required is to use the required property. This property is a Boolean type, and no value is required. It can be used to verify it on the input, select or textarea tags, such as:; Common matching types include text, email, password, etc.; for checkbox, directly add required to force check; in the radio button group, just add required to the first option; the select drop-down box needs to set the default empty value option to trigger verification; different browsers may have different styles and contents of prompt information. If a unified prompt effect is required, you can customize it with JavaScript or third-party libraries for customization.
2025-07-07 comment 0 778
Course Elementary 13780
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 82297
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 13150
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 27457
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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