October 2019
Intermediate to advanced
426 pages
11h 49m
English
Content preview from Learn React Hooks
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Chapter 9: Rules of Hooks
- Where can Hooks be called?
- Hooks can only be called at the beginning of React function components or custom Hooks
- Can we use Hooks in React class components?
- No, it is not possible to use Hooks in React class components
- What do we need to watch out for regarding the order of Hooks?
- The order of Hooks should never change, as it is used to track the values of various Hooks
- Can hooks be called inside conditions, loops, or nested functions?
- No, Hooks cannot be called inside conditionals, loops, or nested functions, because that would change the order of Hooks
- What is the naming convention for Hooks?
- Hook function names should always start with a use prefix and then a name in CamelCase. For example: useSomeHookName ...
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