mergeArrays()

Step 1: Declare the Function and Parameters

First, we need to define a function that will take two arrays as input, let's call it 'mergeArrays'. The function will take two parameters - 'array1' and 'array2'. These are the arrays that we will be merging.

func mergeArrays(array1: [Int], array2: [Int]) {

}

Step 2: Combine the Arrays

Inside the function, we will use the '+' operator to combine array1 and array2, which will create a new array that contains the elements of both arrays. This is not yet the final solution as the new array may not be properly ordered.

func mergeArrays(array1: [Int], array2: [Int]) {
   let combinedArray = array1 + array2
}

Step 3: Sort the Array

To sort the array, we will use the 'sort' method available to arrays in Swift. This method sorts the elements of the array in ascending order. We will use this method on our 'combinedArray' to sort it.

func mergeArrays(array1: [Int], array2: [Int]) -> [Int] {
   let combinedArray = array1 + array2
   return combinedArray.sorted()
}

Step 4: Return the Sorted Array

We want our function to return the sorted array, so we update our function to return an array of integers. Our function now combines two arrays and sorts the combined array in ascending order. The sorted array is then returned by the function.

func mergeArrays(array1: [Int], array2: [Int]) -> [Int] {
   let combinedArray = array1 + array2
   return combinedArray.sorted()
}

Step 5: Executing the Function

Now you can execute the function by passing two integer arrays. You will receive a new sorted array with all elements from the given arrays. Here's an example:

let array1 = [2, 4, 1]
let array2 = [3, 6, 5]
let mergedArray = mergeArrays(array1: array1, array2: array2) // returns [1, 2, 3, 4, 5, 6]

Conclusion

This is how you merge and sort two integer arrays in Swift. This function can be further optimized or modified as per your needs. Remember that Swift is a powerful language with a lot of functionality, a good understanding of its basics will go a long way in improving your problem-solving skills.