Frontend
Code Splitting
Also written as Lazy Loading
Breaking a large JavaScript bundle into smaller chunks that load only when needed (e.g. when a user visits a specific page), instead of forcing everyone to download the entire app upfront.
Think of it like
Like packing only the suitcase you need for a weekend trip instead of hauling your entire closet, and grabbing the rest only if you end up needing it.
Junior or senior?
Junior sounds like
Says they 'lazy-load some stuff.'
Senior sounds like
Describes exactly what got split out and how they measured the win in bundle size or load time.
Ask them
“What's a specific bundle or route you split out, and how did you measure the improvement?”