Golang

Explain what the append function does in the context of data structures.

How to extract initial elements from an array or data slice in your programming language?

In what situations is it recommended to use the sync.Map data structure for storing and accessing data?

Junior — Middle

Lamoda TechСБЕР

What types of tasks can be effectively implemented using goroutines to improve performance?

Transaction: transaction_id uuid identotency_id uuid from_account_id uuid to_account_id uuid amoun decimal status enum transaction_start timestamp transaction_end timestamp payments_create: user_id uuid payment_account_id uuid balance decimal currency varchar(16) status ENUM created_time timestamp update_time timestamp

What is the time complexity of retrieving an element from an array by index?

Can you list and explain the main methods of application containerization?

Can synchronization objects be used as arguments when calling functions?

What difficulties may arise when creating index structures for columns in large database tables?

What methods can be used to stop and exit a Docker container when it is running?

What is the 'currency' field in the accounts table?

How does the mechanism of writing to a restricted access channel work and what happens during this process?

Junior — Middle

Positive TechnologiesКиберпротектМагнит Тех+5

What tools and techniques do you use to find and fix bugs in Go programs?

How is the processing of duplicate incoming requests in the system prevented?

Is it possible to reuse memory block allocated for an existing slice?

When is the CQRS pattern used, and how will the database work when services are logically separated into read and write — will it be one or different?

How is the message processing sequence in the queue determined?

Как differs the behavior of threads during network requests compared to file reading operations?

Can you explain what the context.WithValue function in Go is used for and how it works?

How to extract the first N elements from an array or list?