scala set contains all
val set = Set(1,2,3,4) val subset = Set(1,2) scala> subset.subsetOf(set) res0: Boolean = true scala> set.subsetOf(subset) res1: Boolean = false
Source: stackoverflow.com
val set = Set(1,2,3,4) val subset = Set(1,2) scala> subset.subsetOf(set) res0: Boolean = true scala> set.subsetOf(subset) res1: Boolean = false