What will be the result of comparing collections?
mutable.Seq(1,2,3) == immutable.Seq(1,2,3)
Explanation
Within the same category, collections are equal if and only if they have the same elements (for sequences: the same elements in the same order). It does not matter for the equality check whether a collection is mutable or immutable. For a mutable collection one simply considers its current elements at the time the equality test is performed.
Read more: Collections equality in Scala

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