The Go/Golang online test assesses candidates' knowledge of programming in Go language and their ability to leverage commonly used built-in functions.
It's an ideal test for pre-employment screening. A good Go developer needs to be able not only to solve problems using Go as the programming language but also recognize when to take advantage of its rich set of built-in functions.
This test requires candidates to be able to solve coding problems in Go and find and fix bugs in Go programs.
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Sample Free Questions
Merge Names
Implement the uniqueNames function. When passed two slices of names, it will return a slice containing the names that appear in either or both slices. The returned slice should have no duplicates.
For example, calling uniqueNames([]string{"Ava", "Emma", "Olivia"}, []string{"Olivia", "Sophia", "Emma"}) should return a slice containing Ava, Emma, Olivia, and Sophia in any order.
Quadratic Equation
Implement the function findRoots to find the roots of the quadratic equation: ax2 + bx + c = 0.
The roots of the quadratic equation can be found with the following formula: 
For example, the roots of the equation 2x2 + 10x + 8 = 0 are -1 and -4.
Numeric Input
User interface contains NumericInput control, which accepts only digits.
Extend NumericInput structure so that:
- It implements UserInput interface.
- Add(rune) should add only decimal digits to the input. Other runes should be ignored.
- GetValue() should return the current input.
For example, the following code should output "10":
var input UserInput = &NumericInput{}
input.Add('1')
input.Add('a')
input.Add('0')
fmt.Println(input.GetValue())
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