RosettaCodeData/Task/Array-concatenation/Crystal/array-concatenation.crystal

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arr1 = [1, 2, 3]
arr2 = ["foo", "bar", "baz"]
arr1 + arr2  #=> [1, 2, 3, "foo", "bar", "baz"]
	`arr1 = [1, 2, 3]`
	`arr2 = ["foo", "bar", "baz"]`
	`arr1 + arr2 #=> [1, 2, 3, "foo", "bar", "baz"]`