The ContainsElement method

The ContainsElement method of the Set class checks whether or not the element exists in integerMap. The integerMap element is looked up with a key integer element, as shown in the following code example:

//checks if element is in the set
func (set *Set) ContainsElement(element int) bool{
 var exists bool
 _, exists = set.integerMap[element]
 return exists
}