Can you explain the concept of abstract factory and its purpose in design patterns?
Junior — Middle
305
iOS
4126
124
Is it possible to declare a weak reference as a constant, and in what cases is this permissible?
Junior — Middle
304
Can you explain what a Diffable Data Source is and how it differs from traditional methods of managing data in tables or collections?
Junior — Middle
302
What levels of property and method access exist in Swift?},{
Junior — Middle
293
Can you list the main data types used in Swift?
Junior — Middle
280
Explain the differences between layoutSubviews, layoutIfNeeded, and setNeedsLayout methods in the process of automatic layout and interface update.
Junior — Middle
271
Explain the difference between sequential and parallel data processing.
Junior — Middle
270
What tools and mechanisms do you use to implement and manage multithreading in applications?
266
What difficulties can a system face when working with multithreading?
Middle — Middle+
261
Which queue class implements the Main structure in the Java standard library?
Junior — Middle
260
Can you list the main types of queues used in programming?
Junior — Middle
258
251
What are the main disadvantages and limitations associated with using the Singleton pattern?
Junior — Middle
247
Can you explain what is meant by priority inversion in systems or algorithms?
Junior — Middle
241
How to determine the efficiency of searching for an element in an array in terms of algorithmic complexity?
Junior — Middle
240
Can you explain the difference between a global queue and a background task queue?
Junior — Middle
237
Can you name data structures that are not included in the standard Foundation library?
Junior — Middle
237
What are the main methods of web page layout?
Junior — Middle
233
Can you explain what DispatchQoS is and how it is used in Android operating systems?
Junior — Middle
233
What is the time complexity of adding a new element to a dictionary?
Junior — Middle
232