path.parse and path.format in Node.js - Mini Project: Build & Apply

Using path.parse and path.format in Node.js

📖 Scenario: You are working on a Node.js project where you need to break down file paths into parts and then rebuild them after making some changes.

🎯 Goal: Learn how to use path.parse to split a file path into its components and path.format to join those components back into a path string.

📋 What You'll Learn

Create a string variable with a file path

Use path.parse to split the path into parts

Modify one part of the parsed path

Use path.format to rebuild the path string

💡 Why This Matters

🌍 Real World

Breaking down and rebuilding file paths is common when managing files, renaming files, or changing file locations in Node.js applications.

💼 Career

Understanding how to manipulate file paths is important for backend developers working with file systems, scripts, and server-side applications.

1

Create a file path string

Create a variable called filePath and set it to the string "/home/user/docs/report.txt".

Node.js

// Create a variable called filePath with the value "/home/user/docs/report.txt"
// Your code here

Need a hint?

Use const to create the variable and assign the exact string.

2

Parse the file path into parts

Import the path module and create a variable called parsedPath that stores the result of path.parse(filePath).

Node.js

const filePath = "/home/user/docs/report.txt";
// Import path module and parse filePath
// Your code here

Need a hint?

Use require('path') to import the module and path.parse(filePath) to parse.

3

Change the file name in the parsed path

Change the base property of parsedPath to "summary.txt".

Node.js

const filePath = "/home/user/docs/report.txt";
const path = require('path');
const parsedPath = path.parse(filePath);
// Change parsedPath.base to "summary.txt"
// Your code here

Need a hint?

Assign the new file name string to parsedPath.base.

4

Rebuild the file path string

Create a variable called newFilePath and set it to the result of path.format(parsedPath).

Node.js

const filePath = "/home/user/docs/report.txt";
const path = require('path');
const parsedPath = path.parse(filePath);
parsedPath.base = "summary.txt";
// Create newFilePath using path.format(parsedPath)
// Your code here

Need a hint?

Use path.format with the modified parsedPath to rebuild the path string.