Answer
The fs module provides APIs to create, read, write, and modify files.
Quick Answer
The fs module provides functions for working with the file system — reading files, writing files, creating directories, checking if a file exists. Node has both sync versions (fs.readFileSync — blocks until done) and async versions (fs.readFile — non-blocking with a callback). Always prefer async in production to avoid blocking the event loop.
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ