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Google Front-end Engineer Interview Questions You Should Prepare

by Interview Kickstart Team in Interview Questions
October 14, 2022

Google Front-end Engineer Interview Questions You Should Prepare

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It’s no secret that Google is a great place to work for software engineers, and the competition to get in is cutthroat. Front-end Engineers work tirelessly to create a smooth and engaging user experience. In Google's Front-end interview process, you can expect a phone interview, coding interviews, a Front-end focused system design interview, and a behavioral interview. 

Google pays its Front-end Engineers well for their skillset and other perks. Google Front-end Engineer salaries in the US range from $80,746 to $430,000 per year, with an average salary of about $156,806 per year. 

To ace your Google Front-end interview, you need to hone your skills in CSS, JavaScript, HTML, C++/Java/Python, Angular/Polymer/Backbone/Closure, UI design, system design, and problem-solving in a limited time. To help you put these skills into practice, we've compiled a list of Google Front-end Engineer interview questions that will get you started on the right track. 

If you are preparing for a tech interview, check out our technical interview checklist, interview questions page, and salary negotiation ebook to get interview-ready!

Having trained over 12,000 software engineers, we know what it takes to crack the most challenging tech interviews. Our alums consistently land offers from FAANG+ companies. The highest ever offer received by an IK alum is a whopping $1.267 Million!

At IK, you get the unique opportunity to learn from expert instructors who are hiring managers and tech leads at Google, Facebook, Apple, and other top Silicon Valley tech companies.

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This article focuses on Google Front-end interview questions to help you prepare for your next Google Front-end interview. Read ahead to learn more!

In this article, we’ll cover:

  • Top Google Front-end Interview Questions and Answers
  • Sample Google Front-end Interview Questions for Practice
  • Google Front-end Interview Questions for Experienced Professionals
  • FAQs on Google Front-end Interview Questions

Top Google Front-end Interview Questions and Answers

We’ll begin with some sample Google Front-end interview questions and answers to get a basic idea of what to expect.

Q1. What are Closures in JavaScript?

A feature in JavaScript where an inner function has access to the outer function’s variables is called a closure.

Q2. What does the command Git Pull do?

Git pull gets new information and integrates that information with the current working files. It updates the current head branch with these latest changes from the remote server and attempts to combine remote modifications with those made locally.

Learn more about the roles and responsibilities of a Front-end Engineer here. 

Q3. What are some ways to include CSS Styling in HTML?

Methods for incorporating CSS into HTML include using inline CSS for single element styling or less quantity of styling, external style sheet for many elements or HTML pages, and internal style sheet for single HTML document with a unique style and several elements.

Q4. How would you remove duplicate entries from a JavaScript Array?

To delete duplicate entries from a JavaScript array, we can use the filter() function that takes three arguments: the array, the current element, and the current element index. Another method involves using the For loop for storing all repeated elements in an empty array.

Q5. What is a State in React?

A state is an object that stores the values of properties associated with a component that can change over time.

If you want exclusive tips to crack the Front-end interview, here are 6 steps to crack the Front-end interview.

Sample Google Front-end Interview Questions for Practice

Here are some Google Front-end interview questions. Ensure you can solve them before your interview:

  • When building a new website or maintaining one, can you explain some techniques you have used to increase performance?
  • What are your salary expectations, and what made you go for the Front-end role at Google?
  • Name and talk about some version control systems you know.
  • Tell me something about yourself that is not on your resume.
  • What can you contribute to this team?
  • Explain what happens internally and on Front-end when a user clicks a link in a web browser.
  • Name a general use case for anonymous functions.
  • What's the difference between .call and .apply?
  • Differentiate between an attribute and a property.
  • Explain how JSONP works and why it's not AJAX.

Want to know how much a Google Front-end Engineer earns? Check out our article on Google Front-end Engineer Salary for all the details about the compensation package.

Google Front-end Interview Questions for Experienced Professionals

Let’s move ahead with some technical Google Front-end interview questions. Ensure you can solve them before your interview:

  • How would you reverse a linked list?
  • You have four numbers of type int and four math operators +, -, x, /. Given random ways to group the four given numbers and use any of the four operators, see if you can make 24 from the four numbers. Note that all four numbers should be processed according to their appearance. 
  • Define and describe the use of closure.
  • How can we check whether two binary trees are identical?
  • How would you write a function that calls an input function f only every 50 milliseconds?
  • Explain the JavaScript module pattern. When would you use it?
  • Find the width of an inverted binary tree.
  • How will you design a flashing card system?
  • Create a UI component using a framework of your choice.

We hope this list of Google Front-end interview questions will help you crack your tech interview. To crack Front-end interviews at top companies and land high-paying salaries, you need to know what the interview process is like and accordingly plan your prep. Here is the Front-end Engineer interview process at FAANG+ companies.

Practice some mock interviews and read our guide to 12 key preparation tips to crack an interview to prepare better.

FAQs on Google Front-end Interview Questions

Q1. What are the duties of a Front-end developer at Google?

A Front-end developer does some or all of the following: develops and maintains the user interface, creates tools to increase site engagement irrespective of the browser, implements the design on mobile websites, and manages software workflow.

Q2. Which are some popular tools used in Front-end development?

Some popular front-end development tools include JQuery, Bootstrap, Git, Atom, View.Js, and HTML5 Boilerplate.

Q3.  What are some advantages of TypeScript over JavaScript?

TypeScript has features like interfaces, generics, etc., that are better than what’s available in JavaScript. TypeScript also points out compilation errors during development, supports strongly typed and static typing, and provides quality tool support with IntelliSense.

Q4. What are some popular languages used for Front-end development? Who earns more, Front-end or Back-end engineers?

HTML, CSS, and JavaScript are most commonly used for Front-end development. Back-End engineers seem to earn a higher salary than Front-end Engineers.

Q5. What topics do I prepare for a Front-end developer interview at Google?

Topics to prepare for a Front-end developer at Google include DSA focusing on Trees and Graphs, HTML, CSS, JavaScript, systems design, at least one OOP language, OOP concepts and their application, scalable systems, databases, networks, and interfaces.

How to Crack a Front-end Engineer Interview

If you need help with your prep, join Interview Kickstart’s Front-end Engineering Interview Coursethe first-of-its-kind, domain-specific tech interview prep program designed and taught by FAANG+ instructors. 

IK is the gold standard in tech interview prep. Our programs include a comprehensive curriculum, unmatched teaching methods, FAANG+ instructors, and career coaching to help you nail your next tech interview. 

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Hosted By
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Founder, Interview Kickstart
Our tried & tested strategy for cracking interviews
How FAANG hiring process works
The 4 areas you must prepare for
How you can accelerate your learnings
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