/name-tracker

Simple app that tracks names

Primary LanguageJavaScript

Name Tracker

CircleCI

Concepts practiced

  • useRef(initState) - setting a reference to a element to access it later for read operations.
  • useState(currentState, setStateFunction) - setting states and updating states.
  • ReactDOM.createPortal(content, elementToPortalTo) - portaling a child/element to another element via portal's ID.
  • <React.Fragment /> - placeholder to avoid div soup
  • useEffect - Runs after every render, and will be triggered by the dependencies array. Clean up runs before useEffect.
  • useReducer - Managing complex states with initial state and dispatching actions to modify states.
  • useContext - Easy to pass states down to nested components without props chaining.
  • forwardRef - Turning a component into a ref() to call its functions from parent.

Hook Rules

There are 3 rules for hooks:

  • Hooks can only be called inside React function components.
  • Hooks can only be called at the top level of a component.
  • Hooks cannot be conditional