Last updated 4 years ago
Takes a function , and returns a new one receiving a value and returning the opposite of what would have returned.
It is largely used within the library itself.
not :: Function → a → Boolean
/* Part of the contains validator */ const contains = (value) => compose( when(isString, (string) => string.includes(value)), when(Array.isArray, arrayContains(value)), when(not(or(isString, Array.isArray)), stubFalse), );