Haskell Online Test

Candidates Assessed


Organizations Served


Haskell online test helps tech recruiters & hiring managers to assess the programming skills of the Haskell engineer before hiring. This test has helped our customers reduce technical screening time by up to 85%. 

About Haskell Online Test

Haskell is a fully functional programming language that helps lazy evaluation and type classes. It is a great way to learn mathematics, at the same time it is also powerful for parallel programming. It gives you a good amount of control over your pieces of algorithms as to how your types are structured in memory.   

Haskell online test is designed & validated by experienced Subject Matter Experts (SMEs) to assess & hire Haskell engineer as per the industry standards.  

Are you a jobseeker looking to sharpen your skills?

Test Summary

Haskell programming skills test helps to screen the candidates who possess traits as follows: 

  • Clear vision of understanding Recursive functions 

  • Excellent knowledge of Compiler 

  • Good hand-on experience with Functions 

  • Strong understanding and knowledge of Runtime system 

  • Understanding of High Order functions 

Assessing candidates with our online test is secure and reliable. You can use our role-based access control feature to restrict system access based on the roles of individual users within the recruiting team. Features like window violation and webcam proctoring help detect cheating during the test.  
This assessment includes innovative AI-LogicBox to assess a candidate's practical coding skills in a fun & quick way. 

Test Duration: 40 minutes

No. of Questions: 12

Level of Expertise: Entry/Mid/Expert

Useful for hiring

  • Haskell Engineer
  • Software Developer
  • Senior Software Engineer
  • Haskell / Scala Developer
  • Senior haskell / Full Stack Developer

Topics Covered

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Recursive functions

Haskell online test helps recruiters to understand the candidate’s knowledge of solving a particular problem by calling a function that repeats or uses its own previous term to calculate subsequent terms and thus forms a sequence of terms.

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This test aids the recruiters in understanding the self contained modules of code that accomplish a specific task. 

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Runtime system

This Haskell programming skills test help you find out candidate’s awareness about an engine that translates a given programming language or languages into machine code. 

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High order functions

With iMocha’s pre-hire assessment you get an idea of a function that takes other functions as arguments or returns a function as result.

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This test lets you check the understanding of a computer program that translates computer code written in one programming language into another language. 

Sample Questions

Choose from our 100,000+ question library or add your own questions to make powerful custom tests

Question types:

Multiple Option


The Haskell



Q 1. Identify the monad representing a computation that can read values from a common environment, pass values from function to function, and conduct sub-computations in a modified environment.
Environment monad
Error monad
Exception monad
Failure monad

Question types:

Multiple Option


The Haskell



Q 2. You are given a list for which you have to define a logic that returns all possible ways of inserting a new element into the list. Which of the following is the correct code for implementing the mentioned logic using a variable "n"?
interleave :: n -> [n] -> [[n]]
interleave x [] = [[x]]
interleave x (y:ys) = (x:y:ys) : map (y:) (interleave x ys)
interleave :: n -> [n] -> [[n]]
interleave x [] = [[x]]
interleave x (y::ys) = (x:y:ys) : map (y:) (interleave x ys)
interleave : n -> [n] - [[n]]
interleave x [] = [[x]]
interleave x (y::ys) = (x:y:ys) : map (y:) (interleave x ys)
interleave :: n -> [n] -> [[n]]
interleave x [] = [[x]]
interleave x (y:ys) = (x::y::ys) : map (y:) (interleave x ys)

Sample Report

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Skill wise performance report by iMocha

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You can customize this test by

difficulty level
Setting difficulty level of test      

Choose easy, medium or hard questions from our skill libraries to assess candidates of different experience levels.                       

multiple skills
Combining multiple skills into one test

Add multiple skills in a single test to create an effective assessment. Assess multiple skills together.                                              

adding own skill
Adding your own questions to the test

Add, edit or bulk upload your own coding questions, MCQ, whiteboarding questions & more.                       

tailor made test
Requesting a tailor-made test                  

Get a tailored assessment created with the help of our subject matter experts to ensure effective screening.

Trusted By

Rehana Nisar, Global Product & Services Recruitment Head, Gartner
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“We realized that to acquire quality talent, our recruitment process was in dire need of automation. Too many of our technical team were simply wasting hours conducting interviews that did not yield the desired results. For us, the foremost criteria was to find a recruitment partner who could tick all the right boxes.”

Rehana Nisar, Global Product & Services Recruitment Head,


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