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We can categorise types into two main groups: Value types and Reference types in Swift. The distinction between them is crucial because it affects how data is managed, copied, and passed around in your code. 1. Value Types: Examples: Structs and Enums Characteristics: Instances of value types are copied when they are assigned to…
Arrays and sets are both collection types in Swift, but there are some key difference between Array and Set in terms of their characteristics and use cases. Array: Ordering: Array: Elements in an array are ordered and have a specific index. Accessing Elements: You access elements in an array using their index, which starts from…
In this comprehensive tutorial, we will try to cater to Top iOS Interview questions and Answers. We aim to address key iOS interview questions and provide insightful answers to assist you in thorough preparation and effective revision for your upcoming interview rounds. Q.1 What are value types and reference types in Swift and When to…
2D array in Swift examples Q.1 Given a matrix find row-wise sum. Sol> var matrix = [ [1, -1, 4, 3], [2, 6, -1, -2], [6, -1, 0, 3] ] func rowWiseSum(matrix: [[Int]]) { for row in 0..<matrix.count { var sum = 0 for col…
