Course Introduction：Return to the top JS code, not compatible with Google Chrome! Can anyone help me take a look?
2016-06-24 comment 0 1200
Course Introduction：If you have been writing JavaScript code for a while, you must be familiar with asynchronous programming. Promise is the core of modern JS asynchronous processing, while async/await is just the syntax sugar of Promise, which makes the asynchronous code look more like synchronous code, improving readability and maintenance. However, many people do not fully understand its relationship with Promise when using async/await, which leads to some common mistakes or misunderstandings. Let’s take a look at a few key points to help you better understand and cooperate with async/await with Promise. The Async function automatically returns a Promise when you
2025-07-06 comment 0 593
Course Introduction：async/await is the way to handle asynchronous operations in JavaScript. Its core is to encapsulate Promise, making the code more intuitive. 1. The async function returns a Promise, and await is used to wait for the Promise to complete; 2. Use try/catch to catch errors, and you can manually throw exceptions according to the status code and handle them accordingly; 3. You can perform multiple tasks concurrently in conjunction with Promise.all to improve efficiency; 4. Pay attention to avoid abuse of await and cause serial requests. You cannot directly use await in the top-level scope, and understand the error propagation mechanism.
2025-07-08 comment 0 353
Course Introduction：Although Microsoft has never completely abandoned the classic Windows Media Player, it has not invested much attention in it in recent years. Now, this audio and video tool returns with a new version of Windows 11, and while it doesn't have all the features of its predecessor, it's already a good start. However, there are still many high-quality alternatives on Windows that might be better for you. In fact, if you need to play music or movies, you will have a wide range of options when choosing software. Windows Media Player You can start the Microsoft Store browser from the Start menu and search for "Media Player" in the box at the top
2025-02-25 comment 0 461
Course Introduction：Custom Hooks are a way to reuse state logic in React. It starts with use, calls other Hooks and returns data or methods; its core advantages are reuse logic, simplify components, and optimize structure; for example, useWindowSize can encapsulate window listening logic; when creating, naming specifications, calling Hooks at the top level, and returning values ??reasonably; when using it, pay attention to avoiding class components, reducing the number of parameters, and following a single responsibility; compared with higher-level components, Hooks are more intuitive and have no nesting problems; mastering the principles of naming, calling and responsibilities can improve code quality.
2025-07-12 comment 0 419
Course Elementary 13764
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 82273
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 13140
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 24589
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 27445
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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