Prepare for your Unity Developer interview. Understand the required skills and qualifications, anticipate the questions you may be asked, and study well-prepared answers using our sample responses.
The JavaScript programming language is one of the most popular languages used in the gaming industry. Many developers use this language to create games in Unity, so employers may ask this question to see whether you have experience with it. If you have worked with JavaScript before, share some of the projects you’ve worked on that use the language.
Answer Example: "Yes, I am very familiar with the JavaScript programming language. I have been working as a Unity Developer for the past five years, and have used JavaScript for almost every project. I am proficient in writing clean and efficient code that meets the requirements of the project."
This question is an opportunity to show your knowledge of JavaScript and its different types of objects. You can answer this question by listing the different types of JavaScript objects and explaining what each one does.
Answer Example: "JavaScript has three types of objects: primitive objects, object literals and constructor functions. Primitive objects are basic data types such as strings, numbers and Booleans. Object literals are arrays that contain multiple values separated by commas. Constructor functions are used to create new objects using the ‘new’ keyword."
This question helps the interviewer assess your JavaScript skills and how you apply them in the workplace. Your answer should include the steps you would take to create a new object, as well as any syntax you use to do so.
Answer Example: "I would start by creating a new script in the Project panel, then entering the following code into the editor: var myObject = new Object(); This creates an empty object that I can then fill with properties and methods. To add properties, I would use the following syntax:"
The purpose of the new keyword in JavaScript is to create a new instance of an object. This question tests your understanding of basic JavaScript syntax and how it’s used in Unity development.
Answer Example: "The new keyword is used to create a new instance of an object in JavaScript. It allows me to specify the type of object I want to create, such as a class or function, and gives me access to its properties and methods. For example, if I want to create a new instance of a Dog class, I would use the following code:"
This question can help the interviewer determine your knowledge of JavaScript and how you apply it in your work. Use examples from your previous projects to show how you use primitive data types in JavaScript.
Answer Example: "Primitive data types are basic types of data that can be used in programming languages. In JavaScript, some examples of primitive data types include strings, numbers and Booleans."
Strings are a common data type in JavaScript, and the interviewer may ask this question to assess your understanding of when to use strings in JavaScript. Your answer should show that you know when to use strings and how they can be useful in JavaScript.
Answer Example: "Strings are a common data type in JavaScript, and I use them when I need to store text information. They can also be used to create variables or define constants in JavaScript. Another use for strings is to create arrays of characters or numbers. Finally, I use strings to perform string operations such as concatenation, splitting, and searching."
This question is a great way to test your knowledge of JavaScript and how it works with Unity. An expression is a piece of code that returns a value, while a statement does not return a value. For example, the following code is an expression because it returns the value “Hello World”: “Hello World”; This code is a statement because it does not return a value: console.log(“Hello World”);
Answer Example: "An expression is a piece of code that returns a value, while a statement does not return a value. For example, the following code is an expression because it returns the value “Hello World”: “Hello World”; This code is a statement because it does not return a value: console.log(“Hello World”);"
This question is a great way to test your knowledge of JavaScript and its syntax. You should be able to provide an example of a statement in JavaScript, such as an if statement or a for loop.
Answer Example: "An example of a statement in JavaScript is the if statement. This statement allows me to execute code only if a certain condition is met. For example, if I want to display an alert message only if a variable has a value greater than 5, I would write the following code:"
This question can help the interviewer determine your understanding of basic JavaScript syntax. Use examples from your previous work to show how you use numbers in JavaScript, and what benefits they provide.
Answer Example: "In JavaScript, I would use a number when I’m working with mathematical calculations or data collection. For example, I recently worked on a Unity project where I needed to calculate the distance between two objects in 3D space. Using numbers allowed me to easily calculate the distance between the two points and then use that value in other calculations."
This question is a great way to test your knowledge of JavaScript and how it’s used in Unity. The if statement is one of the most common statements in JavaScript, so it’s important to be able to explain its purpose and how it works.
Answer Example: "The if statement is used to execute code only when a condition is met. It’s a conditional statement that allows us to control the flow of our program based on certain criteria. If statements are used frequently in programming because they allow us to write more efficient code that can respond to changing circumstances."
The interviewer may ask you this question to assess your understanding of JavaScript and its syntax. Your answer should include the purpose of the for statement, as well as an example of how you would use it in your code.
Answer Example: "The for statement in JavaScript is used to iterate through an array or object. It allows me to create a variable that holds the current value of the array or object, which I can then use in my code. For example, if I wanted to print out the values of an array, I could use the for statement like this:"
This question can help the interviewer determine your understanding of JavaScript and how you apply it in your work. Your answer should include an example of when you use each type of value and their different applications.
Answer Example: "A Boolean value is a true or false statement that can be used in conditional statements such as if-else statements. Numeric values are used for mathematical operations such as addition, subtraction, multiplication and division. I use both types of values regularly when developing in JavaScript."
This question can help the interviewer determine your knowledge of JavaScript and its various uses. Numeric values are used in many different ways in JavaScript, so it’s important to be able to identify when they’re most appropriate.
Answer Example: "Numeric values are used for mathematical operations in JavaScript. For example, if I wanted to add two numbers together, I would use a numeric value for each number. Another way that numeric values are used is for storing data in arrays. This is helpful for organizing large amounts of information into smaller chunks. Finally, numeric values can be used as variables in JavaScript. Variables allow you to store information for later use in your code."
The interviewer may ask you this question to assess your understanding of JavaScript syntax. The var keyword is used to declare variables, which are containers for data in JavaScript. You can use var to declare a new variable or modify the scope of an existing variable.
Answer Example: "The var keyword is used to declare a variable in JavaScript. It can be used to create a new variable or modify the scope of an existing variable. For example, if I wanted to create a new variable named number, I would use the following code:"
The interviewer may ask this question to assess your knowledge of JavaScript and how it relates to Unity development. Your answer should include a description of console.log() and its purpose, as well as an example of when you’ve used it in the past.
Answer Example: "The console.log() method is a debugging tool that allows developers to output text to the console window. This is useful for identifying errors in code or tracking the progress of a program. I have used console.log() many times while developing in JavaScript to identify issues with my code. For example, if I am creating a game where the player needs to collect items, I can use console.log() to print out which items they have collected so I can ensure that all items are accounted for."
This question is a great way to test your knowledge of JavaScript and how it’s used in Unity development. The function statement is a part of JavaScript that allows you to create functions, which are blocks of code that can be used multiple times. The purpose of a function is to make your code more organized and easier to read.
Answer Example: "The function statement in JavaScript is used to create functions. A function is a block of code that can be executed multiple times. It allows you to organize your code into smaller chunks, making it easier to read and understand. Functions also allow you to pass data into them, which can be used within the function."
The interviewer may ask this question to assess your knowledge of JavaScript and its syntax. Switch statements are not available in JavaScript, but the language does have a similar construct called ‘if-else’ statements. Your answer should explain the purpose of if-else statements and how they’re used in JavaScript.
Answer Example: "The switch statement in JavaScript is used to select one of many possible actions based on the value of an expression. It allows for conditional execution, which means that the code block following the switch statement will only execute if the expression’s value matches one of the case statements."
This question tests your knowledge of when to use a specific type of data in JavaScript. String is a type of data that holds characters, such as letters, numbers and symbols. You should use strings when you need to store text in a program.
Answer Example: "Strings are useful for storing text in a JavaScript program. I typically use them when I need to display text on a screen or when I’m creating a variable that stores text information. For example, if I want to display the word ‘Hello’ on a screen, I could use the following code:"
The while statement is a control statement that allows you to execute a block of code repeatedly until a condition is met. This question tests your understanding of JavaScript syntax and how it can be used in real-world scenarios.
Answer Example: "The while statement is used to execute a block of code repeatedly until a condition is met. The while statement takes the following form: while (condition) { //code to execute } The condition is evaluated at the beginning of each iteration, and if it is true, then the code within the while statement is executed. When the condition becomes false, the while statement ends."
This question is a great way to test your knowledge of JavaScript and how you use it. You can answer this question by explaining what a comment is, how to write one and why it’s important.
Answer Example: "A comment is a piece of text that you write in your code to explain what it does. It’s important to write comments in your code because it helps other developers understand what you’re doing and why. For example, if I was writing a script that moved an object across the screen, I would write a comment explaining what the script does."
