What are implicit objects?

Question

I was reading about type classes where implicit objects were mentioned:

object Math {
  trait NumberLike[T] {
    def plus(x: T, y: T): T
    def divide(x: T, y:         


        

Answer 1

Thanks to implicit objects, you can define:

def mymethod[T : NumberLike](value: T): T = {
  implicitly[NumberLike[T]].plus(value, value)
}

which allows you to call your methods on Double and Floats because you have objects to deal with them.

scala> mymethod(1.0)
res0: Double = 2.0

scala> mymethod(2)
res0: Int = 4

scala> mymethod("test") //Error