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The meaning and implementation of virtual DOM

This article comes from "An essay on the meaning and implementation of virtual DOM" , if you think it's good, welcome to Star Github wa...
6:59 2 December 2019

Theory+Practice: shell case statement for/while/until loop statement, function, array-full dry goods

Preface: Single quotation marks denote pure symbols with double quotation table strings case multi-branch statement Loop statement for loop statement...
6:39 2 December 2019

Shell develops MySQL master-slave monitoring script

Monitor whether the master-slave synchronization of MySQL is abnormal. If not, send SMS or email to the administrator. 1) develop a daemons script to...
5:52 2 December 2019

Gracefully register events in the React component

Preface In the development of React, we often need to register some events on the window, such as pressing Esc to close the pop-up window, pressing up...
5:43 2 December 2019

Summary of Handlebars, a front-end template engine

I. escape of Handlebars template 1. template Escape, output HTML string when {}} is used When {{}}} is used, html is output without escaping (identif...
5:30 2 December 2019

Cross thread access of winform

Problem description In winform development, we can't avoid using multi-threaded or asynchronous methods in data exchange, so we can't avoid ...
5:30 2 December 2019

update and updateByQuery methods for elasticsearch in PHP

When using ES, we often encounter the situation of updating data, Here is a brief introduction: First, the most common and efficient method is to upd...
5:19 2 December 2019

Noseparte says: How is a gateway thread pool created in online games

Correct Posture for Java Thread Pool Definition of ThreadPool thread pool and how to create it? Configure ThreadPoolExecutor Manage Task Queue Blockin...
4:53 2 December 2019

Realization of Js rotary lottery

Samples Address: http://js.zhumimi.cn/zhujiang/index.htm Source code: https://pan.baidu.com/s/15khesfclf1wmoom6pzcja II. Implementation method 1: buil...
4:33 2 December 2019

How to install multiple versions of CUDA

My machine is CUDA16.04, and CUDA10.0 was installed before. For some reasons, now I need to install CUDA9.0. 1. first https://developer.nvidia.com/cud...
4:16 2 December 2019

Solve the disorder of A6 avant media player

My wife's Audi A6 avant, from my itunes, from music library COPY to SD card, inserted into the media player, checked that the songs in each albu...
4:02 2 December 2019

cv2 window resizable and scaleable

import cv2 videoCapture = cv2.VideoCapture('test.mp4') cv2.namedWindow('name', cv2.WINDOW_NORMAL | cv2.WINDOW_KEEPRATIO) while Tr...
3:54 2 December 2019

Spring Boot get configuration file value

In the process of program development, some values that may be modified are often put into the configuration file. How to get the values of the config...
3:41 2 December 2019

mybatis automatically fills in the time field

For the created ﹣ on and updated ﹣ on entities, it is unnecessary for developers to intervene, because it is enough to explain the use scenario, that ...
3:07 2 December 2019

Detailed introduction to Spring

Preface This article is followed by the detailed introduction to spring (1). It is recommended to read the first article before reading this article. ...
2:41 2 December 2019

ES6 Foundation - ES6 class

Author| Jeskson Source|Dada Front End Bistro ES - Class Classes and Object Oriented: Object-oriented, that is, everything is object. Object-oriented ...
2:02 2 December 2019

Brush the front end of the book

1. The following recursive functions are at risk of stack overflow. How to optimize them? function factorial(n){ return n*factorial(n-1) } Answer: fun...
1:55 2 December 2019

Solve Jackson 2 deserialization LocalDateTime error

Today, when integrating redis and spring boot, I encountered an error. Record it. The error is reported as follows: Could not read JSON: Cannot constr...
1:51 2 December 2019

CCF 201412-2 zigzag scanning

Test question No.: 201412-2 Test question Name: zigzag scanning Time limit: 2.0s memory limit: 256.0MB Problem Description: In the image coding algor...
1:47 2 December 2019

Spring integrates RabbitMQ-03-SimpleMessageListenerContainer

SimpleMessageListenerContainer Simple message listening container. This class is very powerful. We can set many settings for it. For message configura...
1:39 2 December 2019

Three data table de duplication methods of MSSQL SQL Server

Abstract: Three different data De duplication methods will be shared belowData De duplication: it needs to be defined according to a certain field. Wh...
1:35 2 December 2019

[summary] Zhu Liu algorithm of minimum tree graph

Preface I found that I didn't write a blog when I was reviewing... To fill in one.. Minimum Arborescence It is the minimum spanning tree of digr...
1:29 2 December 2019

Mysql- high availability cluster [master-slave single mode -binlog]

Operation process: Install mysql service respectively in master and slave nodes Set common mysql configurations in master and slave nodes1. Add admin...
1:29 2 December 2019

Implementation of mac osx mosaic

Realization principle Reference resources The implementation of mosaic with variable position of iOS finger Implement mac osx version Image mosaic im...
1:22 2 December 2019

Views and templates for ThinkPHP

In short, a controller corresponds to a view, and a method corresponds to a template. Let's go to the figure above. 2. Assign value to template A...
1:13 2 December 2019

JavaScript essence advanced OOP object oriented programming

Reprint please indicate the source Original connection http://blog.huanghanlian.com/article/5b698f22b8ea642ea9213f51 How do we simulate overloading? ...
1:13 2 December 2019

Detailed Aspects Framework for iOS

We must ask ourselves such tasks: first, to learn, second to learn, and third to learn.- Lenin Today I watched a live Aspects sharing, so I want to wr...
0:58 2 December 2019

[Angular] component communication in Angula6

Angula6? Component communication This paper mainly introduces component communication in Angular6 I. parent child component communication 1.1 parent c...
0:55 2 December 2019

Node connects MySQL and encapsulates its addition, deletion, query and modification

Node connects to mysql In this note, the connection between node and mysql will be introduced, and the encapsulated code will be shared, which can be ...
0:29 2 December 2019

Python automatic operation and maintenance development -- Basic slice Application & & list function

1. Slice application (1) copy list: what's the difference between directly assigning a new list and slicing a new list? Use the method of assign...
0:22 2 December 2019