TypeScript Professional Standards & Ethics 2

Question 1

A developer discovers that a third-party TypeScript library used in production secretly collects user telemetry without disclosure. What is the most ethical course of action?

Accepted Answer

Remove the library and report the issue to the team and stakeholders

Answer

Undisclosed data collection violates user privacy and must be addressed by removing the dependency and notifying relevant parties.

Question 2

Which TypeScript compiler option enforces that all code paths in a function return a value, helping prevent unintentional undefined returns?

Accepted Answer

noImplicitReturns

Answer

`noImplicitReturns` causes the compiler to error when any code path in a function does not explicitly return a value.

Question 3

A TypeScript developer reuses a colleague's code in a new open-source project without attribution. This violates which professional principle?

Accepted Answer

Intellectual property and attribution standards

Answer

Proper attribution of others' work is an ethical obligation and may also be a legal requirement under certain licenses.

Question 4

When a TypeScript codebase uses `any` extensively to meet a deadline, what ethical concern does this create?

Accepted Answer

It transfers future risk and maintenance burden to others without disclosure

Answer

Widespread `any` usage accumulates technical debt that will burden future maintainers, which should be disclosed and planned for.

Question 5

A developer is asked to write TypeScript types for an API that handles medical records. Which practice is most critical from a professional standards perspective?

Accepted Answer

Use strict, well-documented types with clear nullability

Answer

Medical data requires strict, well-documented type definitions to prevent errors and meet regulatory standards like HIPAA.

TypeScript Practice Test

TypeScript Practice Test

TypeScript Professional Standards & Ethics 2