What is the convention for naming custom hooks?

What is the convention for naming custom hooks?

• A. Custom hooks should be named with the prefix use, e.g., useFetch.
• B. Custom hooks can be named anything.
• C. Custom hooks must be defined as classes.
• D. Custom hooks can only be used inside components.

Answer: (A)

Custom hooks in React are identified by names that begin with use, such as useFetch. This naming convention signals clearly that the function is a hook and should follow the hooks rules, which helps both tooling and readers understand that it encapsulates reusable, stateful logic. When a function starts with use and calls other hooks, linting tools can enforce correct usage, preventing common mistakes like calling hooks from non-hook contexts. If you name a function differently, it won’t be recognized as a hook by these conventions and tooling, making it harder to reason about its behavior and to ensure proper hook usage. Remember, a hook is a function (not a class) and is meant to be called from a function component or another hook, not from class components. That’s why prefixing with use is the standard and most reliable convention.

Custom hooks in React are identified by names that begin with use, such as useFetch. This naming convention signals clearly that the function is a hook and should follow the hooks rules, which helps both tooling and readers understand that it encapsulates reusable, stateful logic. When a function starts with use and calls other hooks, linting tools can enforce correct usage, preventing common mistakes like calling hooks from non-hook contexts. If you name a function differently, it won’t be recognized as a hook by these conventions and tooling, making it harder to reason about its behavior and to ensure proper hook usage. Remember, a hook is a function (not a class) and is meant to be called from a function component or another hook, not from class components. That’s why prefixing with use is the standard and most reliable convention.