Negate function

[jeswr]

Describe the solution you'd like
A function that negates another function. If f(...p) = true then negate(f)(...p) = false and vice versa.

Additionally propose a solution
Function that negates a function that returns boolean values

Type Signature
((...p) -> Bool) -> ((...p) -> Bool)

Possible implementation
const negate = f => R.compose(R.not, f)

Example use cases

const notIn = negate(R.has)

[jbradle]

Looks like complement from ramda library.