JavaScript Essential for React

React: The library for web and native user interfaces Destructing Objects and Arrays Rest/Spread Operator Spread Operator (…) Expands (spreads) an array or object into individual elements. Rest Operator (…) …

Context in React.js

Context provides a way to pass data through the component tree without having to pass props down manually at every level. In a typical React application, data is passed top-down …

Proposition Logic

Propositional logic (also called proposition logic, sentential logic, or Boolean logic) is a branch of logic that deals with propositions and their truth values—true or false.

Django, Next.js

PyQt -> Django + Next.js

The customer’s computer environment is quite complex, with machines running Windows 7, Windows 10, and Windows 11. Although the PyQt application we developed works on about 90% of these systems, …

RStudio

Docker RStudio

This is docker-compose.yml, execute the command: docker compose up -d to run the RStudio Container. Then open your browser to http://localhost:8787/, you can see the login dialog, please input rstudio/yourpassword …

Disaster Recovery, DR

Disaster Recovery, DR

Usage scenario description: In 2014, when the company was founded, we took on an order management system for enterprise content. At that time, we used the latest technologies: Ubuntu 16.04, …