Prepare for technical discussions with these common Express interview questions and expert answers.
Answer: Express is designed to execute instructions conceptually as a scripting language.
Answer: This represents a foundation for structural bindings, scope, and lifecycle configurations.
Answer: Synchronous calls block the execution flow until complete, while asynchronous calls return promises or execution context immediately and run concurrently.
Answer: Memory management depends on the compiler/runtime, ranging from raw pointers (C/C++), automatic reference/ownership compilation rules (Rust), garbage collection (Go, Python, Java, JavaScript), or SQL engines.
Answer: Use efficient algorithms, minimize memory re-allocations, release connections, and follow: "Write router files in modular formats, design structured error templates, keep controllers logic distinct from API routes."