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Chapter 4 "Queues" Queues are a set of orderly items that follow the FIFO (First In First Out) principle. Queues add new elements at the tail and remove elements from the top. The newly added elements must be at the end of the queue A com ...

Episode 14: Implementing a set of ui component libraries (Popover pop-up box) of vue on pc from scratch 1. Location of this collection Popover component is different from the hegemonic president of alert. It is more inclined to assist in displaying some incomplete content, toast component is more inclined to'prompt'and Popover is more inclined ...

Hello everyone, Lebyte's Xiaole is coming again. Where is less Xiaole shared by Java technology? Last time we said that. Extensible Markup Language XML II: XML Language Format Specification, Document Composition This article will focus on XML parsing.   There are two basic ways of parsing: SAX and DOM. SAX(Simple API for XML) i ...

Speaking of Symbol, let's start with the basic data types string, number, boolean, null, undefined in js. Symbol is the sixth basic data type in js. To describe Symbol in one sentence is unique! Use of Symbol Basic use const s1 = Symbol('song'); const s2 = Symbol('song'); // Identity in Symbol is typically placed in number s, string s console. ...

koa router implementation principle Two purposes of this article Understanding the use of path-to-regexp koa-router source parsing path-to-regexp Introduction to path-to-regexp usage. How can it be used to match identified routes? Think about what we can do if we want to identify routes? The most intuitive is definitely a path string match '/ ...

Browser Object Model (BOM): There is no formal standard yet. I. Windows window Operation All browsers support Windows objects. It represents the browser window. All JavaScript global objects, functions, and variables automatically become members of ...

tags : java Foundation flag: blue @toc JavaDay13 Abstract classes, interfaces, polymorphisms I. abstract abstract classes [Demand]Require inheritance from subclasses of this class, [force] rewrite these skills and methods, report errors wit ...

tags : java Foundation flag: blue @toc JavaDay11 static keyword I. Introduction of static Keyword Living conditions: Water dispensers, for example, are usually placed in a public environment where everyone uses them together. It is not said ...

Snowfall effect is just the name of a kind of effect. It can be the movement effect of some free falling bodies, such as red envelope rain. This paper simulates the effect of snow with pure css, and more effects can be exerted by ourselves. 1. Pre ...

Original Link: https://blog.csdn.net/xugexuge/article/details/88065287 scene There are two scenar ...