Clojure Interview Questions

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Clojure Interview Question and Answers

Clojure is a functional programming language that supports numerous paradigms and operates on a variety of unique hosts. One of the most widely used hosts for running Clojure is the JVM, or Java Virtual Machine. Additionally, Clojure has full access to the Java Functions and Java Development Kit. With Clojure, Java functions and Java Development Kit are available right out of the box. Additionally, programmers can use a node or a browser to access JavaScript runtime through Clojure.

Are you trying to get a job in Clojure? Attempting to find the greatest interview questions to pose. Here is the answer. All you need to have is some basic knowledge of Java and .Net to win the interview. 

Most frequently asked Clojure Interview Questions

Q1) Explain Clojure

Ans. Rich Hickey created the programming language Clojure, a member of the Lisp family, for the Java Virtual Machine (JVM). It is open source, dynamic typed, and of the JVM.

  • The programming language Clojure has compiled language.
  • The Lisp dialect Clojure is a potent macro system.
  • Clojure is a fantastically easy language.

Q2) Why should you choose Clojure?

Ans. Because the general-purpose programming language Clojure is open source, has a dynamic type system, and it is free.

Q3) What Are the Basics of the Languages?

Ans. 

  • Lisp and an open source programming language form the foundation of Clojure.
  • Clojure is a structured programming language 
  • Clojure is a dynamic type of system.
  • The JVM is used to execute Clojure.
  • It's free to use Clojure.

Q4) Mention a few features of Clojure

Ans. The characteristics of Clojure include the following:

  • The programming language Lisp serves as its foundation.
  • It is a language for functional programming.
  • It controls an application's state.
  • It allows for concurrency.

Q5) What is Clojure used for?

Ans. Clojure is widely utilized for handling huge amounts of data, Large-scale predictions, commercial AI, and data mining are all excellent applications.

Want to acquire industry skills and gain complete knowledge of Clojure? Enroll in Instructor-Led live Clojure Training to become Job Ready!

Q6) Mention a few advantages of Clojure

Ans. Clojure has been gaining popularity in recent years for its ability to work on multiple platforms, including the JVM, JavaScript, and Node.js. Some of the advantages of Clojure are:

  • Clojure runs on multiple platforms without any changes 
  • Clojure provides an interactive development environment 
  • Clojure supports many types of languages such as Java, JavaScript, C++, Ruby, etc.

Q7) Explain Clojure Spec

Ans. The Clojure library's Spec type is often used to describe the data and functional structures. The major purposes of the Clojure spec are to explain bad data; automatically build test cases to test functions and confirm and validate data.

Q8) What do you understand by Clojure REPL?

Ans. Reading Eval Print Loop is the abbreviation of REPL. An example of a programming language that supports interaction with an active Clojure program is the Clojure REPL. It can also be improved by modifying it by evaluating each code expression separately.

Q9) What do Clojure macros do?

Ans. The majority of code-generating procedures are written using macros, giving developers a strong means of modifying the languages to suit their needs.

Q10) Explain the uses of Macros

Ans. Typically, the inline code is produced using Clojure macros. For developers or consumers, Clojure offers straightforward macro facilities without placing any demands on them.

Q11) Has Clojure been multi-threaded?

Ans. Programming with multiple threads is made easier by Clojure in so many ways. The fundamental data structures can easily be exchanged between threads because they are irreversible.

Q12) Name a few programming languages

Ans. Some examples of the many programming languages are as follows:

  • Haskell
  • Clojure
  • Phyton
  • Erlang
  • Scala

Q13) What platforms does Clojure run on?

Ans. Clojure operates on two different platforms:

  • Java
  • .Net

Q14) Explain JVM

Ans. JVM is an abbreviation for Java Virtual Machine. JVM is a specific kind of machine or engine that offers an important runtime environment to power JavaScript or other applications. The JVM's primary function is to translate Java Bytecode into machine-level language.

Q15) What is the main purpose of Clojure in JVM?

Ans. The primary purpose of Clojure is as a host programming language. It utilizes the JVM and offers Java compatibility. The language offers performance, security, stability, and portability security while running in Java.

Q16) Mention the Closure code process phases

Ans. The Clojure code is processed through three different types of phases, which are as follows:

  • Reading time
  • Build time
  • Runtime

Q17) Which iterations of Java are recognized by the programming language Clojure?

Ans. The Clojure programming language supports the enhanced Java 5 platform.

Q18) What is the best way to show the Clojure version in the REPL?

Ans. You must use the command if you wish to show the Clojure version in the REPL.

Clojure Printin – Version

Q19) What kinds of functions does the Clojure programming language employ?

Ans. The primary categories of functions used in Clojure are as follows:

  • Anonymous - Simple functions without names fall under the category of anonymous functions.
  • Named - Functions that are named are those that are connected to a symbol that serves as an identifier.
  • High Order Functions - These kinds of functions frequently have another function as a parameter.

Q20) Name Clojure variables

Ans. Following are some of the Clojure variables: 

  • Int
  • Long
  • Short
  • Char
  • Boolean
  • String
  • Float

Q21) What are some of the Clojure Operators?

Ans. The following operators are available in Clojure:

  • Arithmetic
  • Recursive
  • Reasoning
  • Bitwise

Q22) What does the Clojure.main namespace mean?

Ans. Functions in the Clojure.main namespace enables open dialogue sessions and Clojure programs.

Q23) What characteristics does a socket server have?

Ans. The socket server properties are as follows: 

Properties of Socket Server

Description

Server-daemon

Assuming it is true, the socket server thread does not obstruct exit by default.

Address

It addresses or hosts, It is set to loopback by default.

Port

It is necessary and requires positive integers.

Accept

It serves as a function-named symbol. It is needed since it is used to invoke when the socket accepts.

Args

It is a list of arguments to accept that must be supplied in the order.

Bind-err

Err is bound to the socket out stream by default, which is true.

Client-daemon

Since the socket client thread will not block exit, it is by nature true.

Q24) Define Map in Clojure

Ans. A collection called a "Map" is used to map Keys to Values. It offered two different map types:

  • HashMaps
  • SortedMaps

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