L4. Path Module in Node.js

1. Importing Path Module

console.log("Path Module");  
import path from 'path';

• path is a built-in module in Node.js.

• Helps handle and transform file paths easily.

2. Joining Paths

const fullPath = path.join('/path', 's.txt', 's.json');  
console.log(fullPath);

• path.join(): Merges multiple path segments into a single path.

3. Resolving the Current Working Directory

const resolvedPath = path.resolve();
console.log(resolvedPath);

• path.resolve(): Returns the absolute path of the current working directory.

4. Getting File Extension

const ext = path.extname('file.txt');  
console.log(ext); // Output: .txt

• path.extname(): Extracts the file extension.

5. Security Consideration

• Paths can be restricted in APIs to prevent unauthorized file access.

• Helps avoid directory traversal attacks.