validations

validations.js

var isDup = function (a){
	return a.length !== R.uniq(a).length
}

var isEmpty = function (a){
	return R.length(a) ? false : true
}

//valid
R.filter(R.test(/[\w]{5,30}/), serials);

var isValid = function(regex, serials, cb){
	let filtered = R.filter(R.test(regex), serials)
	return serials.length === filtered.length ? cb(null) : cb("Seriales invalidos " + R.difference(serials, filtered))
}