Node.js — Path

Import Path Module

const path = require('path');

Path Methods

// Join paths
path.join('/users', 'john', 'file.txt')
// '/users/john/file.txt'

// Resolve absolute path
path.resolve('file.txt')
// '/current/directory/file.txt'

// Get directory name
path.dirname('/users/john/file.txt')
// '/users/john'

// Get file name
path.basename('/users/john/file.txt')
// 'file.txt'

// Get extension
path.extname('file.txt')
// '.txt'

Platform-Specific Paths

// Windows: C:\users\john\file.txt
// Unix: /users/john/file.txt

path.sep          // Separator character
path.delimiter    // Path delimiter
path.win32        // Windows paths
path.posix        // Unix paths

Practical Example

const configPath = path.join(__dirname, 'config', 'app.json');
const templatePath = path.join(__dirname, 'templates', 'email.html');

Mini Practice

1. Join multiple path segments
2. Get file extension
3. Resolve absolute paths
4. Use __dirname for project paths

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