DeepFrontend
Learning Paths
Practice
System Design & DS
Design Studio
Data Structures Curriculum
Real-World Case Studies
Careers
Job Board
Resume Builder
Blog
Sign in
Search
⌘K
Go Pro
Loading compiler resources...
Frontend Architecture Quiz Practice
Active Recall Drill Session
← Exit Session
Question 1 of 1
medium
Frontend Architecture
Why is a root-level `index.ts` (barrel file) important in a feature directory?
A
It acts as a public API boundary, preventing other features from importing internal implementation details
B
It is required by Next.js to register dynamic route handlers
C
It minifies the entire feature module automatically at build time
D
It registers React context stores in the global scope
Check Answer