email_validate.js

const validateEmail = email => {
        const re = /^(([^<>()[\]\\.,;:\s@"]+(\.[^<>()[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/
        return re.test(String(email.trim()).toLowerCase())
}

const deleteRepeated = (valor, indice, self) => {
    return self.indexOf(valor.toString()) === indice
}

//arrray: data.filter(validateEmail).filter(deleteRepeated)