170+ iOS 11 & Swift 4 Interview Questions

Explore swift operators, from unary and binary to the remainder and identity operators, plus range concepts (closed vs open) and logical operators for object and Unicode character comparisons.

Explore loops and conditional statements in Swift, including if, else, switch, guard, while, and repeat-while, with practical examples of break and continue controlling flow.

Master Swift functions: define parameters and return types, pass arguments in order, use default and variadic parameters, and explore nested function calls.

explore interface basics by examining storyboard, interface builder, and the launch and main screens, and learn to design adaptive layouts with constraints, hierarchy, voice over, and alerts.

Explore app resources, data files that accompany an executable, and localization via strings files. Understand points versus pixels and screen scales (1x–3x) for image resources.

Learn how the Info.plist uses key-value pairs to declare capabilities like persistent Wi-Fi, and how the app bundle stores the executable, icons, and retina assets in xcassets with en.lproj.

Connect views with code using IB outlets and IB actions, run your app on a real device, and inspect storyboard connections while learning alerts and action sheets.

Explore the basics of machine learning and augmented reality with Core ML and ARKit, converting pre-trained models to ML model format and applying world tracking to anchor virtual objects.