Guest Voice: The Most Asked Go Interview Questions By ScienceSoft

An open-sourced programming language, Go was first published in 2009 with a combined effort of a lot of contributors and a dedicated team at Google. It was created with simplification in mind, especially when it comes to things like complex architecture and processes. Because of this, there are a lot of ways you can utilize this language. For example Go developers from ScienceSoft use it for creating big data systems, cloud-native applications, distributed systems, blockchain software, etc. That’s why companies are always on the lookout for a developer well versed in Go and should be the next programming language you learn. Here are some questions you will probably get asked, broken down by a 3 tier level system of difficulty from easiest to most difficult.

Tier 1 Go Interview Questions - From Junior to Mid Developer

• Why Golang was it created?
• Why is using Go beneficial? Name some of the benefits when using Go programming.
• Can a Go function return multiple values from a function?
• Does Go have exceptions and what does Go code use to indicate an abnormal state?
• Does Gg have automatic type promotion or conversion, what kind of type conversion is supported?
• Can you name some of the benefits when using Go programming?
• What do you know about Goroutines, how many are usually running concurrently?
• What does a pointer variable hold?
• What does a static type declaration provide?

Tier 2 Go Interview Questions - From Mid to Senior Developer

• What are some of Go’s object-oriented language features?
• Make a list of all the built-in support featured in Go.
• Does Go support method overloading and does it have optional parameters?
• Can you check if a map contains a key in Go if you can, how?
• How were you comfortable working with Go 2? (a trick question as there really is no official Go 2 out yet)
• Are constants special, and if so why?
• Would you prefer to use an empty struct{}, and if so why?
• Can you provide a few examples of swapping two values? Provide an example of swapping three (3).
• Can you initialize a struct or struct literal in Go? Give an example of how.
• Show us an example where you implemented a function that will reverse a slice of integers.
• Write an example of a forereach construct in the language.
• Name the differences between buffered and unbuffered channels.
• What is the “rune type in the Go language? Is a string a necessary type of sequence in “runes”?
• What are the main differences between the = and := operator in Go?

Tier 3 Go Interview Questions - From Senior to Expert and Team Lead

• How would you check if two slices are equal?
• Can you list the functions that have the ability to stop(or suspend) the execution of any currently running goroutine? Explain the differences between each one.
• How does GC work?
• What makes Go compile so fast?
• Explain the difference between $GOROOT and $GOPATH.
• Can you find a type of an object, if yes then answer how.
• Name a time Go runtimes allocates memory from heap and when it does from stack.
• How can you compare two interfaces in Go?
• Can you explain the type of assertion it is used for and how does it?
• How can you write multiline strings in Go?
• Please explain the way you can access command line arguments passed to a Go program.

It has been a long time since the developer community got excited over any new program language. Golang is simply a great initiative made by google and will benefit businesses all over the spectrum. Already a lot of famous companies utilize it in some of their huge projects. Go is simply the way of the future, it is a decisive component in a software strategy and delivery for the near future to come.