Formula Editor - Tip Dropdown Box Function - Dynamic Acquisition of Cursor Position

Introduction Should develop the demand, need to write a formula editor plug-in, below to tell you about the implementation process. (wiping sweat, forcing calmness, cough, voice opening ~) Html  There's really only a little bit of it.~ <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title ...

Added by PHPLRNR on Fri, 17 May 2019 09:51:49 +0300

Concurrent HashMap for JDK Source Analysis (12)

This article will mainly talk about JDK version 1.8 Concurrent HashMap, its internal structure and many hash optimization algorithms are the same as JDK version 1.8 HashMap, so before reading this article, we must first understand HashMap, for reference. HashMap correlation In addition, there are also red and black trees in Concurrent HashMap, ...

Added by smokey20 on Fri, 17 May 2019 04:02:20 +0300

The Seven Principles of Java Design Patterns: Law Of Demeter

"Demeter's Law": This means that "the less your class knows about other classes, the better"; 1. Concept: A software entity should interact with other entities as little as possible. Each software unit has the least knowledge of other units, and is limited to those software units closely related to the uni ...

Added by ifty on Thu, 16 May 2019 13:27:42 +0300

Communication between React components

In the process of using React, it is unavoidable to need message transmission (communication) between components. There are several situations of communication between components in general: Parent components communicate to child components Subcomponents communicate to parent components Communication between cross-level components Communicatio ...

Added by cocpg on Thu, 16 May 2019 08:26:23 +0300

Cordova source learning (1) - JS calls Native

This article only reads the source code of the interaction between JS and Native. As for how Cordova develops plug-ins and so on, please refer to Cordova's official documentation: https://cordova.apache.org/docs/en/latest/ JS calls Native Flow chart Flow chart analysis index.html call The participants were suc ...

Added by PHPSpirit on Thu, 16 May 2019 07:52:04 +0300

JAVA--Concurrent Thread Security Processing (1) --Thread Security

Knowledge about multithreaded concurrency and thread security is organized as follows: How Threads Ensure Security How to publish objects securely What are the means of thread security Explanation of JUC components How to improve thread scheduling 1. How do threads ensure security? What is Thread Security This class is thread safe when mult ...

Added by maya28 on Thu, 16 May 2019 03:18:15 +0300

Exploration of the Principle of Phantom Trigger in JSBox

Preface The ghost trigger is Zhong Ying. JSBox In the case of the app process being killed, the notification can also be fixed in the notification bar, even if the user clicks to clear, it can immediately pop up again, never disappear, unless the user closes the notification authority of App or uninstalls App, it can disappear. This function is ...

Added by tomkleijkers on Thu, 16 May 2019 02:40:21 +0300

Data structure and algorithm C++ tic-tac-toe Jingzi

Rarely today, campus activity day, school holidays, can do a good job in the near future plans but has no time to do things ~such as blogging [oblique smile] I'm very busy recently. There are many ddl s. There will be three exams next week, and there will be English pre... next week. But I really want to record my recent learnin ...

Added by twizler on Thu, 16 May 2019 02:04:26 +0300

Java Learning Notes - Set Interface and Map Interface

Set interface and Map interface 1. Understanding the characteristics of Set sets 2. Master the Use of Common Implementation Classes under Set Sets 3. Understanding the characteristics of Map collections 4. Master the Use of Common Implementation Classes under Map Set 5. Master the traversal mode of Map set 6. Master Colle ...

Added by bluemonster on Wed, 15 May 2019 08:09:05 +0300

Implementing Picture Preview Component Based on Element UI

This is a simple click preview componentBy the way, record scope pits in vue stepped on during component writing~ Start with registering global components! Project catalogue: Imitate elementUI directory structure, directory name is component name, SRC is component source file (or js service file), there is also an index.js in the file director ...

Added by reddevil on Wed, 15 May 2019 05:40:54 +0300