Introduction
Read in detail: WHAT IS GOLANG? WHAT IS IT USED FOR? Top 50 Intermediate Interview Questions and Answers
1. What are Goroutines in Go?
Goroutines are lightweight threads managed by the Go runtime. They allow concurrent execution of functions.
2. How are Goroutines different from threads?
Goroutines are more efficient than OS threads because they use smaller stacks and multiplex onto fewer threads.
3. Explain the purpose and usage of the select statement in Go.
The select statement lets a goroutine wait on multiple communication operations. It blocks until one of its cases can run, then executes that case.
4. What is a nil pointer in Go, and how can it cause runtime errors?
A nil pointer points to no object, and dereferencing it leads to a runtime panic. Always check if a pointer is nil before dereferencing it.
5. How does Go handle errors, and what is the idiomatic way to return and handle errors?
Go uses error values to indicate errors. The idiomatic way is to return an error as the last return value and check it using if err != nil.
6. What is the difference between a slice and an array in Go?
7. How do you handle concurrency in Go?
8. What is a channel and how is it used in Go?
For engineers
Find work worth your time.
Live engineering roles across India and the US, matched to your stack. Build a profile recruiters actually discover.
Top 50 Golang Intermediate Interview Questions and Answers
Explore the top 50 intermediate Golang interview questions with comprehensive answers. Enhance your proficiency and ace your next interview.