CourseElementary54124

Course Introduction："HTML5 From Beginner to Mastery Tutorial" introduces in detail that HTML5 has added a lot of new content based on HTML, with more functions and more dazzling effects.

CourseElementary26925

Course Introduction："Javascript Basics Tutorial" will take you to quickly learn the basic knowledge of javascript and explain it through examples, so that you can better understand the javascript scripting language.

CourseElementary30789

Course Introduction：This tutorial will start from the basics and does not require you to have any programming knowledge. The "HTML Tutorial" contains our knowledge of HTML5, truly achieving a comprehensive learning of HTML.

CourseElementary24062

Course Introduction："HTML5 Quick Self-Study Tutorial" is suitable for zero-based entry learning of HTML5. HTML5 is the fifth version of HTML development. With the support of browser technology, it has also begun to be widely used. H5 will become the new standard for WEB development. This course will provide readers with Explain all the core features of HTML5.

CourseElementary90666

Course Introduction："JavaScript Elementary Tutorial" is an introductory course to JavaScript, designed to let everyone know and understand the common knowledge of JavaScript.

Course Introduction：As PHP continues to evolve, language features continue to be enhanced and improved. In the PHP8 version, a new feature was introduced: Uniontypes. Union types add type restrictions to variables, parameters, return values, etc., which can fill in the problem of missing types in the code. This article will introduce the core ideas and usage of Uniontypes. What are Uniontypes? In PHP, we often need to impose type restrictions on variables to ensure the correctness and reliability of the program. U

2023-06-21 comment 01285

Course Introduction：PHP is a loosely typed programming language that allows the use of different data types in the code, such as strings, integers, floating point numbers, etc. As PHP continues to develop, type processing has become a topic of increasing concern. The launch of PHP8 is an important milestone. It introduces Uniontypes to make type processing more flexible. What are Uniontypes? Uniontypes means that a variable can have multiple data types at the same time. Before PHP7, variables

2023-06-21 comment 0694

Course Introduction：One of the biggest improvements to the PHP programming language over the past few years has been the introduction of some new data types in PHP 8. These new data types can significantly improve code readability and performance, and allow PHP developers to better manage data in their applications. The following will briefly introduce the new data types supported in PHP8: 1. UnionTypes (Union Type) Union type means that a variable can have several different types. In previous versions, we often needed to

2023-06-21 comment 0893

Course Introduction：There is a method in jquery: one, which is used to automatically unbind event binding after executing it only once. I felt dizzy after looking at the source code for a long time, so I decided to make one myself. After studying it for a long time, I simulated it once using native. The name I used was once. The original method is like this: function once(dom, event, callback) { var temp = callback; dom.addEventListener(event, functi

2017-06-25 comment 01747

Course Introduction：How to use PHP Developer City to implement the order delivery track query function. With the development of e-commerce, more and more people choose online shopping to meet their daily needs. However, customers have always been very concerned about the delivery progress and trajectory of their orders. In order to provide a better shopping experience, the mall needs to provide real-time delivery track query function during the order delivery process. This article will introduce how to use PHP Developer City to implement the order delivery track query function. 1. Design the database First, we need to design the database to store order and delivery information. Can

2023-06-30 comment 0969