Learning Functional Programming in Go

Filter function

The Filter function is a HOF that takes another HOF, namely ByMake, and performs a data transformation.

func (cars Collection) Filter(fn FilterFunc) Collection {   filteredCars := make(Collection, 0)   for _, car := range cars {      if fn(car) {         filteredCars = append(filteredCars, car)      }   }   return filteredCars}