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G# (programming language) G# is a general-purpose programming language designed by Google. It was first announced in 2016 and has since been used to develop a variety of applications, including games, machine learning models, and web services. G# is a compiled language, which means that it is converted into machine code before it can be executed. This makes it a relatively fast language, but it also means that it can be more difficult to debug. G# is open source and available on GitHub. Sources: [1] https://en.wikipedia.org/wiki/G%23_(programming_language) [2] https://g3doc.corp.google.com/g3doc/g3/what_is_g3.md

Ask the right questions secure the right G# talent among an increasingly shrinking pool of talent.

First 20 minutes

General G# app knowledge and experience

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

How would you define G#?

G# is a high-level programming language that is primarily used for game development. It is a statically typed, multi-paradigm language that supports procedural, object-oriented, and functional programming styles.

What are the basic data types in G#?

The basic data types in G# include integer, float, double, char, string, and boolean.

How would you declare a variable in G#?

In G#, you declare a variable by specifying its type followed by its name. For instance, 'int myVariable;' declares a variable named 'myVariable' of type integer.

What is the scope of a variable in G#?

The scope of a variable in G# refers to the region of code within which the variable can be accessed. This can be within a function, within a class, or globally across the entire program.

How would you implement exception handling in G#?

Exception handling in G# is done using the try-catch-finally construct. The code that might throw an exception is placed in the try block, the catch block contains code to handle the exception, and the finally block contains code that is always executed, regardless of whether an exception was thrown.

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What you’re looking for early on

Does the candidate have a solid understanding of G# programming language?

Has the candidate demonstrated problem-solving skills during the interview?

Is the candidate able to communicate effectively about technical concepts?

Does the candidate have experience with other programming languages?

Next 20 minutes

Specific G# 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.

What are the different types of loops in G#?

G# supports several types of loops, including for loops, while loops, and do-while loops.

Describe the difference between a class and an object in G#.

In G#, a class is a blueprint for creating objects. It defines the properties and methods that an object of that class will have. An object is an instance of a class. It has the properties and methods defined by the class.

How would you create a new instance of a class in G#?

In G#, you create a new instance of a class using the new keyword followed by the class name and parentheses. For instance, 'MyClass myObject = new MyClass();' creates a new instance of MyClass.

What are the principles of object-oriented programming in G#?

The principles of object-oriented programming in G# include encapsulation, inheritance, polymorphism, and abstraction.

Describe the difference between inheritance and polymorphism in G#.

Inheritance in G# allows a class to inherit the properties and methods of another class. Polymorphism allows methods to behave differently based on the object that is calling them.

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At this point, a skilled G# engineer should demonstrate strong problem-solving abilities, proficiency in G# 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 G#.

What does the following G# code do?
let x = 10
let y = 20
let z = x + y
This code declares two variables, x and y, assigns them the values 10 and 20 respectively, and then adds these two values together and assigns the result to a third variable, z.
What will be the output of the following G# code?
let list = [1, 2, 3, 4, 5]
let sum = list |> List.sum
This code creates a list of integers from 1 to 5, and then calculates the sum of these integers using the List.sum function. The output will be 15.
What does the following G# code do?
let list = [1, 2, 3, 4, 5]
let reversed = list |> List.rev
This code creates a list of integers from 1 to 5, and then reverses the order of these integers using the List.rev function. The result is a new list with the integers in reverse order.
What does the following G# code do?
let rec factorial n = if n = 0 then 1 else n * factorial (n - 1)
This code defines a recursive function to calculate the factorial of a number. If the input number is 0, the function returns 1. Otherwise, it multiplies the input number by the factorial of the number minus one.

Wrap-up questions

Final candidate for G# 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 G# application deployments. Inquire about their experience in handling system failures and their approach to debugging and troubleshooting.

How would you implement a recursive function in G#?

A recursive function in G# is a function that calls itself. It must have a base case to prevent infinite recursion and a recursive case that involves a call to itself.

What are the different types of access modifiers in G#?

The different types of access modifiers in G# include public, private, protected, and internal.

Describe the difference between a static method and an instance method in G#.

A static method in G# belongs to the class itself and can be called without creating an instance of the class. An instance method belongs to an instance of the class and can only be called on an instance of the class.

G# application related

Product Perfect's G# development capabilities

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

G# Consultive assessments

G# Application Conversion Assessment G# Application Integration Assessment G# Data & Database Integration Assessment

Custom G# development projects

Custom G# App Conversion G# Custom App Development Process App UI Design for G# Facelifts

Hiring guide for G# Engineers

G# Developer Hiring Guide

What you’re looking for early on

The ideal back-end app developer

What you’re looking to see on the G# engineer at this point.

G# Consultive assessments

Custom G# development projects