Basically a map over the array and template literal the two fields together.
Clarify the input and output requirements, then outline a simple mapping solution using array methods. Discuss edge cases and complexity before writing clean, readable code.
Pro tip: Mention that you would use `map` for immutability and readability, and briefly note how you'd handle missing or non-string names to show production awareness.
Confirm the input is an array of objects with `firstName` and `lastName` strings, and the output is a new array of full-name strings. Ask about edge cases like empty arrays or missing fields.
Select `Array.prototype.map` to transform each author object into a full-name string without mutating the original array. This keeps the solution declarative and concise.
Inside the map callback, combine `firstName` and `lastName` with a space, e.g., using template literals or string concatenation. Ensure the format is exactly 'First Last'.
Consider empty input, null/undefined fields, or non-string values. Decide whether to filter, default to empty strings, or throw errors based on requirements.
State that time complexity is O(n) and space complexity is O(n) for the new array. Walk through a small example to verify correctness.
AI-generated suggestions, not part of the candidate's original notes. May be inaccurate — verify before relying on them.