重组：等价于withState / withHandlers与withStateHandlers的组合

Question

Simple question: if i want to use withStateHandlers instead of the couple withState/withHandlers. What is the equivalant of this :

withState('value', 'updateValue', ''),
withHandlers({
    onChange: ({updateValue}) => event => updateValue(event.target.value)
})

Thanks for your answer :)

Answer 1

withStateHandlers doesn't have named stateUpdater (like updateValue in your case), so you need to interact with the state directly.

withStateHandlers(
  // you define the initial state
  { value: '' }, 
  // this is handler - you return a new state - updated value in this case
  { onChange: () => event => ({ value: event.target.value }) } 
)