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useForm con Validaciones
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import { useEffect, useMemo, useState } from 'react'; | |
export const useForm = ( initialForm = {}, formValidations = {}) => { | |
const [ formState, setFormState ] = useState( initialForm ); | |
const [ formValidation, setFormValidation ] = useState({}); | |
useEffect(() => { | |
createValidators(); | |
}, [ formState ]) | |
useEffect(() => { | |
setFormState( initialForm ); | |
}, [ initialForm ]) | |
const isFormValid = useMemo( () => { | |
for (const formValue of Object.keys( formValidation )) { | |
if ( formValidation[formValue] !== null ) return false; | |
} | |
return true; | |
}, [ formValidation ]) | |
const onInputChange = ({ target }) => { | |
const { name, value } = target; | |
setFormState({ | |
...formState, | |
[ name ]: value | |
}); | |
} | |
const onResetForm = () => { | |
setFormState( initialForm ); | |
} | |
const createValidators = () => { | |
const formCheckedValues = {}; | |
for (const formField of Object.keys( formValidations )) { | |
const [ fn, errorMessage ] = formValidations[formField]; | |
formCheckedValues[`${ formField }Valid`] = fn( formState[formField] ) ? null : errorMessage; | |
} | |
setFormValidation( formCheckedValues ); | |
} | |
return { | |
...formState, | |
formState, | |
onInputChange, | |
onResetForm, | |
...formValidation, | |
isFormValid | |
} | |
} |
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