FrontendHaltJavaScript·Intermediate·Conceptual·1 min read
What does the class syntax change?
Short interview answer
Classes provide clearer syntax and semantics over prototype-based behavior: methods live on the prototype, constructors initialize instances, and extends links both constructor and prototype chains. Classes are strict, cannot be called without new, and support private fields.
Key takeaway
Explain the underlying mental model clearly, then support it with a concrete example and its trade-offs.