34 Front-End Interview Questions for Candidates and HR

Hermione at Pangea.ai
Godwin Oluponmile
Published: 20.10.2022

Interviews for tech roles like front-end development and Flutter roles are borderline determinants of how qualified you are. HR would throw front-end interview questions at you, but your diplomatic approach and response are the yardstick to ascertain your ethics and experience. If you fit in, you get the role, but if not, you are left hoping for a response that might never come.

Preparing surefire answers for possible HR questions keeps you ahead of other applicants and increases your odds of success. But how do you even prepare answers if you are clueless about questions you might be asked?

Make no mistakes; your CV and resume only get you an interview. The interview gets you the job. Your response has to be in-depth and airtight enough to prove that you just might have the skill it takes to work as a front-end developer.

A man interviewing a potential female staff with a jotter on his desk

34 Front-End Interview Questions for Engineers

First off, you should be sure of your skills as a front-end engineer. Can you implement codes like HTML and CSS? How well can you utilize frameworks like AngularJS, ReactJS, and Ember? Most job interviews are navigated to uncover irregularities and false claims. But, above all, they focus on discovering the candidate. This includes finding out your values and work ethic. Also, to see if you’d fare well with the existing work culture.

It’s no surprise why most HR people ask open-ended questions. Here are some of the most dazzling interview questions you should prepare.

  1. When is the best time to fire DOMContentLoaded and Load events?
  2. Name the HTTP status code classes that are used to induct success, client error, and server error.
  3. Can you write a code snippet that demonstrates the use of ES6 Promise API?
  4. What’s an event propagation (bubbling phase)?
  5. Provide the same-origin policy as a part of the web browser security model and their practical limitations.
  6. What is the essence of HTML5 History API in single-page applications
  7. What’s the process for the Critical Rendering Path for web browsers?
  8. Why is PageVisibility API useful?
  9. Provide a ground-up overview of recent Push web technologies.
  10. How are objects in Javascript passed? by reference or by value?
  11. What does “1” + 2 + 4 evaluate to? What about “1” == 1 ?
  12. What has your front-end development career been like?
  13. Is JS any different from jQuery?
  14. How will you commit to the company’s growth?
  15. Tell us about other phases in the DOM Event flow you know.
  16. Is placing an async after the tag appropriate?
  17. What are the Anonymous functions in JS?
  18. Explain CSS image sprites and their implementation.
  19. Do you have the basic skills front-end developers must have?
  20. What do you think is a user-friendly web design? How will you go about it?
  21. Are your codes understandable by other developers?
  22. Describe how you plan your CSS and JavaScript structure.
  23. What is CSS rule?
  24. What are SASS and XSS?
  25. Tell me about HTML Meta Tags.
  26. Why do you think you are experienced with ReactJS?
  27. Why are REST web services beneficial?
  28. Which elements of design do you think are crucial?
  29. Tell us about ClickJacking.
  30. Why use the W3C standard code?
  31. Can you optimize a web page through code? What’s your process?
  32. In CSS- would you choose Normalizing or Resetting?
  33. Explain and differentiate div and span.
  34. Do you know and implement the principles of SOLID?
  35. How to Secure a Job Role as a Front-end Engineer

Different stages of building processes mobile and web developers go through before they finish a project.

Not every applicant gets the job, and too often, candidates who do their due diligence are the ones who stand a chance. One would expect that having the skill is enough to get them on the job, and It’s not wrong to think that your qualification also plays a vital role in the HR decision-making process.

However, every organization has a unique taste in its choice of candidates. They all try to see who fits their goals and work ethic.

Certainly, you wouldn’t sabotage your organization's goal by playing the favoritism card. Perhaps you’d rather stick with a candidate who better fits your work culture and is fairly qualified over an arrogant candidate, which is the essence of interviews.

Interviews bring you closer to the candidate, beyond CVs and resumés. It helps those who see what’s behind that pretty face and appealing resume. And every interview question like the ones above is geared towards fishing out the ideal candidate amongst the herd of the applicant. How? Let’s find out!

HR expects some dynamics in your answer to interview questions. And as an applicant, you should provide these dynamics. Let’s explore how to provide dynamics and cut-fit answers to interview questions.

Know the Job

Landing a Front-end engineering job is challenging and seldom gets easier. But, for an applicant who already knows what it takes, securing the job becomes tard easier.

Organizations looking to fill a front-end engineering job role almost always publish a list of what they’d be looking for in a candidate. Your first job is digesting every bit of that job and paying attention to its details. When you see information like “we are looking for an applicant who can take the initiative and run with it, " it means they are looking for a candidate who is a team leader –a candidate that needs less monitoring to get things done.

Show Experience

When you answer questions or write a resume, it’s not enough to give a theoretical answer. You must show practicality. That’s all HR is asking for anyways! It’s a show, don’t tell ordeal. Anybody can quote or give non-practical answers to interview questions. But, if you are experienced enough to apply for the job, do more than give answers; take them on a journey of how you’ve implemented whatever you are saying and show the result you got.

Be Concise

One of the best ways to show experience is to make difficulty look easy. And there’s no better way to do it than provide concise or straightforward answers to front-end interview questions. Rambling has no use or positive advantage to it. Just say what needs to be said and leave out the excesses.

Take Your Time

One myth that surrounds interviews is the belief that “you’re expected to provide spontaneous answers.” Well, you’re not! What’s the rush anyways? Take calculated pauses to let your answers sink. It’s also a display of confidence, and you should learn to maximize the power that comes with momentary silence in interviews.

“Tell me about yourself.”

One of the most conflicting questions candidates might face in an interview is “tell me about yourself!” When asked, kindly note that HR is not interested in the fact that your mum gave birth to five kids or any answer that doesn’t concern how you can rightly fill the role.

FAQs:

Having airtight answers to possible interview questions gives you a headstart over another applicant. It might take a few practices in front of the mirror, but it’s the right way to stay prepared ahead of a job interview. Here are some of the possible questions you might want an answer

Q1. How do you practice front-end?

Give a quick overview of your processes in utilizing frameworks, how you code, and why you think your approach makes your work more efficient. These are answers you should think about and internalize before the interview.

Q2. Do front-end developers need to know algorithms?

Yes, front-end developers need algorithms to deal with large data structures and complex problems. Understanding algorithms and data structures also promote critical thinking, problem-solving, and coding skills.

Q3. Why do I need to hire you?

Give sufficient details about your career path related to the job requirements. Find the company or organization’s pain point and address it by rightly positioning your experience as the best thing they can have. This question is a variant of “tell me about yourself.”

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