Uplift iOS Interview
The Guide is for YOU if
- You are preparing for an iOS interview and want to improve your skills and knowledge and looking to level up your interview game and land your dream job.
- You want to gain confidence and ease during iOS interviews by learning expert tips and curated strategies.
- You want access to a comprehensive list of iOS interview QA to practice and prepare.
In Swift, there are several ways to merge two arrays. One way is to use the + operator to concatenate the two arrays. This method creates a new array that contains the elements from both of the original arrays.
let firstArray = [1, 2, 3] let secondArray = [4, 5, 6] let mergedArray = firstArray + secondArray print(mergedArray) // [1, 2, 3, 4, 5, 6]
Another way to merge two arrays is to use the append(contentsOf:) method. This method appends the elements of one array to the end of another array.
var firstArray = [1, 2, 3] let secondArray = [4, 5, 6] firstArray.append(contentsOf: secondArray) print(firstArray) // [1, 2, 3, 4, 5, 6]
You can also use the insert(contentsOf:at:) method to insert the elements of one array into another array at a specific index.
var firstArray = [1, 2, 3] let secondArray = [4, 5, 6] firstArray.insert(contentsOf: secondArray, at: firstArray.endIndex) print(firstArray) // [1, 2, 3, 4, 5, 6]
You can also use the reduce method to merge two arrays. Read also The Power of reduce in Swift
let firstArray = [1, 2, 3]
let secondArray = [4, 5, 6]
let mergedArray = firstArray.reduce(secondArray) { $0 + [$1] }
print(mergedArray) // [4, 5, 6, 1, 2, 3]
All of these methods will merge two arrays in Swift, but the best method to use will depend on the specific requirements of your application. Each of these methods have their own advantages and limitations. Be sure to test your code thoroughly when using any of these methods to ensure that it behaves as expected.
✍️ Written by Ishtiak Ahmed
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