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Author: Mr. Liu Shangyuan Give no less than any effort May all our efforts be lived up to Never forget why you started, and your mission can be accomplished. Learn from the beginning to the end You've heard the story of a bear breaking a stick They think bear is stupid I don't think I'll ever do that But they often do things like ...

Following the previous one-way list, the single line list can be further expanded into a ring, as shown in the following figure: Characteristic: 1. The first node is called the head node, and the last node is called the tail node 2. Each node points to the next node unilaterally 3. Tail node next node points to head node Title: Gaspar, a F ...

Previous: Analysis of Vue principle (4): do you know how to generate virtual Dom? After another tree structured JavaScript object, what we need to do now is to form a mapping relationship between this tree and the real Dom tree. First, we briefly review the previous mountComponent methods: export function mountComponent(vm, el) { vm.$el = e ...

There are many reasons why you should use internal queues in your program. There are many good reasons to use internal queues in a program. Most common patterns contain the same principle - divide the processing into two separate parts, each of which can then work autonomously. Queues are the best way to move objects from one thread to another ...

Implement Promise Simulated (Small White Edition) This article talks about how to simulate the basic function of a Promise. There are already many articles like this on the Internet. There will be more ink in this article because you want to use your own understanding and spoken in vernacular Promise's basic specifications are referenced in thi ...

Development environment: InteliJ IDEA Operating system: Mac OS Mojave Elastic search version: Alibaba cloud 5.5.3 with x-pack Client version: REST Client 5.5.3 1. Create Alibaba cloud ES instance in advance and open the public address access white list. 2. Pre create index and mapping (using Kibana Dev Tools) PUT index_test { "mappings": ...

Today we will introduce some animations of the Material Design button: water ripple and exposure effect. Source download address: 1. Water ripple effect   1.1 layout file <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http: ...

subject https://www.luogu.org/problemnew/show/P1141 This solution is mainly for my personal problems and attention. Solving problems Let's start with the Unicom block For example, if a fish swims in a pond, then in the case of unlimited time, the small fish will swim across all positions of the pond, which has nothing to do with the starti ...

1 component registration 1.1 @ configuration & @ Bean register Bean 1.1.1 traditional xml Person.java package com.xuweiwei.spring.model; /** * @describe: * @author: Don't worry about the past, only laugh for the rest of my life. * @version: 1.0 */ public class Person { private String name; private Integer age; ...

background Asynchronous is a very important feature of js, but many times, we not only want a series of tasks to be executed in parallel, but also want to control the number of concurrent tasks to be executed at the same time, especially for asynchronous tasks with limited resources, such as file handles, network ports, etc. Take an example. fu ...