iOS

Can you explain what the makeKeyAndVisible method does in the context of interface display?

Junior — Middle

Иннотех

МТС

Have you had experience developing interfaces for interacting with the backend of applications?

Why is it sometimes advisable to run more threads than the number of processor cores?

In what cases can a value type variable behave like a reference to an object?

Junior — Middle

Simbirsoft

Is it possible to store elements of different data types in the same array at the same time?

How does a local queue differ from a shared global queue in a task management system?

How is the dispatching of methods added through Extension in protocols implemented?

Tell us about how team work was organized at your previous job.

Junior — Middle

СБЕР Бизнес

СКБ-Контур

BetBoom

+1

What is the difference between using state and binding in the context of development?

Junior — Middle

МТС

Can you explain what DispatchGroup is and how it is used in programming?

Junior — Middle

Wildberries

How was the code review process conducted in your previous company?

Can you explain the Singleton concept and its application in programming?

Junior — Middle

Иннотех

Doubletapp

How did you start your career in the IT field?

What are the ways to implement optional elements in code?

What mechanisms ensure the uniqueness of elements in a collection of type set?

Junior — Middle

DNS

What is the difference between Weak and Unowned references in memory management?

How is the time complexity of inserting an element into a hash table evaluated?

Can you list the main types of memory leaks that can occur when programming in Swift?

What impact does using the 'final' keyword in Java have on program performance?

What is the relationship between the RunLoop mechanism and the use of queues in event processing?