How to find the difference between two arrays?

0 votes

How to find the difference between two arrays?

# For example:
arr1 - arr2 = arr3
in Engine by (692 points)

What do you define as the "difference" of two arrays?

by (29,090 points)

For example:

["value1", "value2", "value3"] - ["value2"] = ["value1", "value3"]
by (692 points)

1 Answer

+2 votes
Best answer

You could try this function:

func difference(arr1, arr2):
    var only_in_arr1 = []
    for v in arr1:
        if not (v in arr2):
            only_in_arr1.append(v)
    return only_in_arr1
by (29,090 points)
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