symmetricdifference() Function

Function

symmetricdifference( array1, array2 )

Returns the values from two integer arrays that are not in both arrays.

Parameters

Returns

Any Type Array

Examples

Find the of values from two integer arrays that are not in both arrays

symmetricdifference({1, 2, 3, 4}, {3, 4, 5, 6}) returns an array with 1, 2, 5, 6

Values are matched with case sensitivity

symmetricdifference({"a", "b"}, {"a", "B"}) returns an array with b, B

Array types must match

symmetricdifference({"a", "b"}, {1, 2}) returns the following error: Invalid types, can only act on data of the same type.

symmetricdifference({"a", "b"}, tostring({1, 2})) returns an array with {"a", "b", "1; 2"}

Every field of a CDT, dictionary, or map must match to be treated as identical:

symmetricdifference({a: 1, b: 2}, {a: 1, b: 2, c: 3}) returns {{a: 1, b: 2}, {a: 1, b: 2, c: 3}}

symmetricdifference({a: 1, b: 2}, {a: 1, b: 2}) returns {}

Null values and empty lists

Null values are included as long as they are of the correct types (nulls of an incorrect type throw a type mismatch error):

symmetricdifference({"a", "b"}, {"c", ""}) returns an array with a, b, c, ""

Empty lists are ignored as long as they are of the correct types (empty lists of an incorrect type throw a type mismatch error):

symmetricdifference(tointeger({}), {1, 2}) returns an array with 1, 2

Scalar values

Scalar values are cast to arrays with a single entry:

symmetricdifference(1, {2, 3}) returns an array with 1, 2, 3

Find whether two arrays match

The following example returns true if local!updatedArray matches local!originalArray, otherwise returns false:

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length(
  symmetricdifference(
    local!originalArray,
    local!updatedArray
  )
) = 0

Feature compatibility

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