path.basename and path.dirname in Node.js - Cheat Sheet & Quick Revision

Recall & Review

beginner

What does path.basename do in Node.js?

path.basename returns the last part of a file path, usually the file name with extension.

beginner

What is the purpose of path.dirname in Node.js?

path.dirname returns the directory part of a file path, which is everything except the last part.

beginner

Given the path /home/user/docs/file.txt, what will path.basename return?

It will return file.txt, the last part of the path.

beginner

Given the path /home/user/docs/file.txt, what will path.dirname return?

It will return /home/user/docs, the directory part of the path.

intermediate

How can you use path.basename to get the file name without its extension?

You can pass a second argument with the extension to remove, like path.basename('/path/file.txt', '.txt') which returns file.

What does path.basename('/folder/file.txt') return?

A file.txt

B /folder/file.txt

C /folder

D file

path.basename returns the last part of the path, which is the file name with extension.

What does path.dirname('/folder/file.txt') return?

A file

B file.txt

C /folder/file.txt

D /folder

path.dirname returns the directory part of the path, which is /folder.

How do you get the file name without extension using path.basename?

A Use <code>path.extname</code>

B Use <code>path.dirname</code>

C Pass the extension as second argument to remove it

D Use <code>path.join</code>

Passing the extension as the second argument removes it from the result.

Which module do you need to use basename and dirname?

A path

B http

C os

D fs

basename and dirname are functions from the path module.

What will path.basename('/folder/file.txt', '.txt') return?

A file.txt

B file

C .txt

D /folder/file

The second argument removes the extension, so it returns file.

Explain how path.basename and path.dirname help you work with file paths in Node.js.

Think about splitting a full file path into folder and file name.

Describe a real-life situation where you might use path.basename and path.dirname in a Node.js project.

Imagine you are building a file manager or uploader.