Performance·Intermediate·Coding·1 min read

What's the difference between code splitting and lazy loading?

Short interview answer

Code splitting is the build-time act of dividing a bundle into separate chunks. Lazy loading is the runtime decision to actually fetch one of those chunks only when it's needed, rather than during the initial page load.

Key takeaway

Explain the underlying mental model clearly, then support it with a concrete example and its trade-offs.

← Back to Code splitting and lazy loading

What's the difference between code splitting and lazy loading?

Key takeaway

Related questions