The difference between nodejs and js syntax

Node.js and JavaScript have the following core differences in syntax: Global scope: Node.js is global, JavaScript is window. Module system: Node.js provides a native module system, and JavaScript has no built-in module system. File system access: Node.js provides built-in support, JavaScript often requires the help of APIs or third-party libraries. I/O model: Node.js uses event loop non-blocking I/O, and JavaScript uses a synchronous I/O model.

The syntax difference between Node.js and JavaScript

Node.js is a JavaScript runtime environment used to build servers end application. It extends the JavaScript language, adding several additional features and modules to optimize for server-side development.

Core differences

• Global scope: In Node.js, global objects are global scope, while the global scope in JavaScript is the window object.
• Module system: Node.js provides a module system that allows blocks of code to be imported and exported. There is no built-in module system in JavaScript.
• File system access: Node.js includes built-in support for file system and I/O operations, while JavaScript typically requires the use of browser APIs or third-party libraries to access files.
• Event-driven I/O: Node.js uses an event loop model for non-blocking I/O, while JavaScript uses a synchronous I/O model.

Additional Features

In addition to the core differences, Node.js adds several additional features, including:

• Buffer object: Used to process binary data.
• Stream API: Used to create and process data streams.
• Timers and events: Provides more advanced timing and event processing functions.
• Debugging tools: Includes debugging tools such as debugger and console.log to facilitate debugging server-side code.

Syntax extension

Node.js extends the syntax of the JavaScript language and adds the following new features:

• CommonJS Modules: Allows the import and export of code blocks in files.
• ES6 Modules (ESM): Provides a more modern module system that is compatible with the module system defined in the JavaScript standard.
• Asynchronous function (async/await): Allows writing asynchronous code, similar to the syntax of synchronous code.

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