swift

findArrayDifference()

Parameters: firstArray: [Int], secondArray: [Int]

Two arrays of integers to compare

Returns: An array of integers

This function takes two arrays as input and returns an array that contains the difference between the two. The difference is computed by excluding common elements in both arrays.

arrays
functions
set theory
conditionals
subtraction
Medium dificulty

How to Implement a Find-array-difference Function in Swift

Hello, Programmer. Today's blog post walks you through a simple yet, intriguing task - programming a function to find the difference between two arrays in Swift. You'll get a thorough step-by-step guide on implementing this function. Happy coding!

Learn function in:

Array Difference

Computes the difference between two arrays

Learn more

Mathematical principle

The function uses the concept of Set Differences in mathematics, which is a part of Set Theory. In a Set A and B, the difference (A-B) is the set of elements which are only in A but not in B. Similarly, the difference (B-A) is the elements in B but not in A. For example, if `A = {1,2,3}` and `B = {2,3,4}`, the difference A-B = `{1}`, and the difference B-A = `{4}`.

Learn more