Hiring guide for EuLisp-2.1 Engineers

EuLisp-2.1 Developer Hiring Guide

EuLisp-2.1 is a version of the EuLisp programming language, which is a dynamically-typed, object-oriented language that is designed to be simple, efficient, and flexible. It was developed by a group of European researchers in the late 1980s and early 1990s with the goal of creating a standard Lisp language for Europe. EuLisp-2.1 includes features such as modules and classes, multiple inheritance, exception handling, and concurrency. It also supports functional programming paradigms and has a meta-object protocol that allows users to modify the behavior of the language itself. Despite its advanced features, EuLisp-2.1 remains relatively easy to learn and use due to its clean syntax and straightforward semantics.

Ask the right questions secure the right EuLisp-2.1 talent among an increasingly shrinking pool of talent.

First 20 minutes

General EuLisp-2.1 app knowledge and experience

The first 20 minutes of the interview should seek to understand the candidate's general background in EuLisp-2.1 application development, including their experience with various programming languages, databases, and their approach to designing scalable and maintainable systems.

What are the basic data types in EuLisp?
The basic data types in EuLisp include integers, floating-point numbers, characters, symbols, strings, vectors, and lists.
How would you define a function in EuLisp?
In EuLisp, a function is defined using the 'de' keyword followed by the function name, parameters, and the function body. For example: (de hello-world () (print 'Hello, World!')).
Describe the difference between 'eq' and 'equal' in EuLisp.
'eq' tests whether two symbols or numbers are the same, while 'equal' tests whether two structures have the same shape and contents.
How would you implement recursion in EuLisp?
Recursion in EuLisp can be implemented by having a function call itself within its own definition. For example, a recursive function to calculate factorial could be: (de factorial (n) (if (<= n 1) 1 (* n (factorial (- n 1))))).
What are the control structures available in EuLisp?
EuLisp provides several control structures including 'if', 'while', 'for', 'cond', 'case', and 'do'.
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What you’re looking for early on

Does the candidate have a solid understanding of the EuLisp-2.1 language?
Can the candidate demonstrate problem-solving skills?
Is the candidate familiar with the tools commonly used in EuLisp-2.1 development?
Does the candidate have experience with version control systems?

Next 20 minutes

Specific EuLisp-2.1 development questions

The next 20 minutes of the interview should focus on the candidate's expertise with specific backend frameworks, their understanding of RESTful APIs, and their experience in handling data storage and retrieval efficiently.

How would you handle exceptions in EuLisp?
Exceptions in EuLisp can be handled using the 'catch' and 'throw' functions. 'catch' establishes a new exception handler, and 'throw' signals an exception.
Describe the difference between 'let' and 'let*' in EuLisp.
'let' allows for parallel bindings, where all the initial values are computed before any of the variables are bound. 'let*' allows for sequential bindings, where the variables are bound one at a time, in order.
How would you create a class in EuLisp?
In EuLisp, a class can be created using the 'defclass' keyword followed by the class name, superclasses, and slots. For example: (defclass person () ((name :initarg :name :accessor name) (age :initarg :age :accessor age))).
What are the different types of inheritance in EuLisp?
EuLisp supports single inheritance, where a class can inherit from one superclass, and multiple inheritance, where a class can inherit from multiple superclasses.
How would you implement polymorphism in EuLisp?
Polymorphism in EuLisp can be implemented using generic functions and methods. A generic function can have different methods that are selected based on the classes of the arguments.
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The ideal back-end app developer

What you’re looking to see on the EuLisp-2.1 engineer at this point.

At this point, a skilled EuLisp-2.1 engineer should demonstrate strong problem-solving abilities, proficiency in EuLisp-2.1 programming language, and knowledge of software development methodologies. Red flags include lack of hands-on experience, inability to articulate complex concepts, or unfamiliarity with standard coding practices.

Digging deeper

Code questions

These will help you see the candidate's real-world development capabilities with EuLisp-2.1.

What does this simple EuLisp code do?
(defun hello-world () (print 'Hello, World!'))
This code defines a function named 'hello-world' that, when called, prints the string 'Hello, World!' to the standard output.
What will be the output of this EuLisp code?
(let ((x 5) (y 10)) (+ x y))
The output of this code will be 15. It first defines two local variables x and y with values 5 and 10 respectively, and then adds them together.
What does this EuLisp code do?
(defun mapcar (function list) (if (null list) nil (cons (function (car list)) (mapcar function (cdr list)))))
This code defines a function named 'mapcar' that applies a given function to each element of a given list and returns a new list with the results. It is a common function for list manipulation in Lisp.
What does this EuLisp code do?
(defclass thread () ((id :initarg :id :accessor thread-id) (status :initarg :status :accessor thread-status)))
This code defines a class named 'thread' with two attributes: 'id' and 'status'. The ':initarg' keyword allows these attributes to be initialized when an instance of the class is created, and the ':accessor' keyword defines functions for getting and setting the values of these attributes.

Wrap-up questions

Final candidate for EuLisp-2.1 Developer role questions

The final few questions should evaluate the candidate's teamwork, communication, and problem-solving skills. Additionally, assess their knowledge of microservices architecture, serverless computing, and how they handle EuLisp-2.1 application deployments. Inquire about their experience in handling system failures and their approach to debugging and troubleshooting.

Describe the difference between 'defmethod' and 'defgeneric' in EuLisp.
'defgeneric' is used to declare a generic function and its argument types, while 'defmethod' is used to define a method for a specific class or classes.
How would you perform file I/O operations in EuLisp?
File I/O operations in EuLisp can be performed using functions like 'open', 'close', 'read', 'write', 'print', and 'format'.
What are the different types of modules in EuLisp?
EuLisp supports two types of modules: library modules, which are collections of definitions, and program modules, which are executable programs.

EuLisp-2.1 application related

Product Perfect's EuLisp-2.1 development capabilities

Beyond hiring for your EuLisp-2.1 engineering team, you may be in the market for additional help. Product Perfect provides seasoned expertise in EuLisp-2.1 projects, and can engage in multiple capacities.