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arraycomparison You can compare two arrays for equality with `a:eq?` or check for inequality with `a:-eq?`. &a &b a:eq? To see if an array contains a value, use `a:contains?`. &a #613 a:contains? Finding the indices of values in an array is done with `a:indices`. (And the first occurance can be found with `a:index`). `a:indices` returns a new array of the indexes. &a #33 a:indices