1. The Node. Js is introduced
- What is Node.js?
Node.js is a JavaScript runtime built on Chrome’s V8 JavaScript engine.
1.1 features
- Node.js can parse JS code and provide a number of system-level apis, such as:
- File System reading and writing
- Process management
- Network Communication (HTTP/HTTPS)
- .
For example, 1.2
2.1 Restrictions on Browser security Levels
Ajax test