I have need for the following.

Given any two arrays of ints
array1 = [1, 5, 7]
array2 = [1, 2, 7, 9]
I need to determine if both arrays contain the same values...
though not necessarily in the same order.
So, the above would result in 'false'.

Comparing
array1 = [1, 3, 5]
array2 = [1, 5, 3]
would result in true.

array1 = [1]
array2 = [1, 3]
would result in false... etc.

I have the two arrays, but is there any way to compare
the values without looping through the second array for
each value in the first?

Thanks.