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21 interview questions on Gofor developers (2025)

Test your technical skills before an interview of Go with 21 corrected questions. Beginner, Intermediate or Expert level.

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21 questions
Easy
5 votes390 runs0 comment

Write a Go program that prints 1 if test is true, and 0 otherwise.

Back-end developer
if else
variables
Communauté W3Dat Nov 29, 2021
Easy
3 votes420 runs0 comment

Declare a variable of type int64 and containing the value 42 in Go

Back-end developer
variables
types
Communauté W3Dat Feb 17, 2022
Medium
1 vote404 runs0 comment

How to define a function in Go

Back-end developer
functions
declaration
Communauté W3Dat Nov 29, 2021
Easy
0 vote399 runs0 comment

Write a Go program that prints the string "Hello World" to the console.

Back-end developer
strings
Communauté W3Dat Jan 30, 2023
Easy
0 vote396 runs0 comment

What is the default value of a variable in Go?

Back-end developer
interfaces
Communauté W3Dat Nov 29, 2021
Easy
0 vote386 runs0 comment

What are the two files that are created when you run go mod init?

Back-end developer
go.mod
go.sum
Communauté W3Dat Nov 29, 2021
Easy
0 vote385 runs0 comment

Accessing a private field in Go

Back-end developer
structs
private
public
Communauté W3Dat Nov 29, 2021
Easy
0 vote382 runs0 comment

Write a Go program that prints the numbers from 1 to 10

Back-end developer
loops
control flow
Communauté W3Dat Nov 29, 2021
Easy
0 vote377 runs0 comment

Iterate over a slice in Go

Back-end developer
range
slice
Communauté W3Dat Nov 29, 2021
Easy
0 vote376 runs0 comment

How to add an element to a slice in Go

Back-end developer
slice
append
Communauté W3Dat Nov 29, 2021
Medium
0 vote370 runs0 comment

Write a Go program that prints the following lines to the console: line 1, line 2, line 3, line 4

Back-end developer
error
pointers
Communauté W3Dat Nov 29, 2021
Medium
0 vote369 runs0 comment

Go is a statically typed, compiled language designed at Google that makes it easy to build simple, reliable, and efficient software.

Back-end developer
garbage collector
architecture
Communauté W3Dat Nov 29, 2021
Medium
0 vote369 runs0 comment

What is the type of the first character of a string in Go?

Back-end developer
types
errors
Communauté W3Dat Nov 29, 2021
Easy
0 vote368 runs0 comment

What is the equivalent of undefined in Go?

Back-end developer
nil
Communauté W3Dat Nov 29, 2021
Easy
0 vote368 runs0 comment

Create a struct in Go

Back-end developer
struct
method
Communauté W3Dat Nov 29, 2021
Easy
0 vote368 runs0 comment

How to use goroutines in Go

Back-end developer
goroutines
Communauté W3Dat Nov 29, 2021
Medium
0 vote260 runs0 comment

Which data type can store any value in Go?

Back-end developer
data types
interface
Nick LAM YEE MANat Dec 22, 2022
Easy
0 vote76 runs0 comment

Return a string with the word 'Hello' and the name of the person passed as an argument.

Back-end developer
strings
fmt
Emmanuel Jametat Dec 26, 2024
Easy
0 vote31 runs
1 comment

How to handle errors in Go

Back-end developer
error
panic
Cédricat Jul 7, 2025
Waiting for validation
0 vote0 run0 comment

Declare a variable of type int64 and containing the value 42 in Go

Back-end developer
variables
types
Anonymous authorat Nov 21, 2025