functor-if

Functor implemented in JavaScript which contains conditional execution of a function through the method .mapIf

API

constructor(val: any): Functor

Returns a value wrapped in a functor.

of(val: any): Functor

Returns a value wrapped in a functor.

map(fn: () => {}): Functor

Runs a function on the value contained in the functor. Returns the result of running the function on the value in a Functor.

mapIf(fn: () => {}, truthy: Function | bool): Functor

In the case of truthy being a function, the function is run on the value enclosed in the functor and if that value results in a truthy value, the fn supplied is run over the value contained in the functor and a Functor is returned with the result. In the case of truthy being a boolean, if truthy is true, the fn supplied is run over the value contained in the functor and a Functor is returned with the result.

reduce(fn: () => {}): any

Returns the result of running an operation over the value contained in the Functor. Note: The value does not get wrapped in a Functor but the direct result is returned.