Anonymous interview experiences, offers and career talk from frontend engineers.
FrontendLead Discuss is a private, anonymous space where software engineers exchange interview experiences, job insights, and salary details. Our mission is to empower the engineering community by sharing knowledge so we grow together instead of competing alone.
What is event bubbling? When to use it, provide a specific example. Are you familiar with the capture phase? 2. What is event delegation? What are its advantages and disadvantages? 3. What is the difference between prot…
The following content requires points higher than 150 for you to view: Event bubbling CSS preprocessor Accessibility Promises and callbacks coding: Visually inspect the output results and follow up: Correct (both outp…
The interviewer provided good guidance, and the communication was smooth. It felt like a company with a great atmosphere. They showed a code snippet and asked to explain what would be printed, likely testing fundamenta…
During the preparation for the interview, I didn’t see many data points on the frontend interview experiences at Company L. In mid-March, a recruiter contacted me about a frontend position and I scheduled a phone intervi…
Function to search for numbers in an ordered matrix Function to convert numbers to Roman numerals CSS positioning - naming types Features of HTML 5 Handling accessibility - Aria Explaining a promise in JavaScript H…
Two interviewers had a Skype interview with me and asked some basic FE questions: What is event bubbling? What is the difference between prototypal vs classical inheritance? What is a CSS preprocessor and what are its …
const endorsements = [ { skill: 'css', user: 'Bill' }, { skill: 'javascript', user: 'Chad' }, { skill: 'javascript', user: 'Bill' }, { skill: 'css', user: 'Sue' }, { skill: 'javascript', user: 'Sue' }, { skil…
There are too few frontend mirrors, so I made a modest contribution. I hope to receive encouragement from everyone and move forward together. Contacted through FB HR on LinkedIn, then introduced myself first, presented …
Interview process consisted of five rounds, each with a different focus and set of interviewers. Round 1: Pragmatic UI Brief introduction followed by designing a checking writing UI. Then, a task involving converting n…
In the HR prescreen call for the Meta Front End Engineer position applied for in the spring, it was noted that the questions were quite standardized. Unlike previous Meta interviews, which did not typically include such …
In Meta Frontend HR interviews, you may also be asked some basic JavaScript questions. Here are the previous year’s questions and answers for reference. Most of the questions I was asked were exactly the same, and the HR…
HR interview questions: let vs const vs var this closure event delegation call vs apply determine whether an image is fully loaded find a node in a balanced DOM tree
I’m about to have a job interview soon, so I’m sharing a frontend phone interview from before. It failed inexplicably. I feel like frontend is unpredictable, maybe I should focus on interviewing for a Product Engineer po…
All questions are from bigfrontenddev. It should be fine for frontend developers to practice these coding questions. Be careful not to memorize the answers, as there will be many follow-up questions. You need to thorough…
Phone interview did not ask frontend JavaScript questions, instead, they asked two algorithm problems ranging from easy to medium difficulty. . Binary tree get the sum of numbers, number is composed of the path from roo…
HR Screening, I didn’t check the interview experiences before and went directly to the interview. I prepared many Behavior Questions thoroughly but was surprised when the HR asked a lot of JavaScript questions. Here is a…
The information from the company was very helpful to me, so I want to give back after successfully landing the opportunity 
Topics mostly focused on frontendlead. Around 15 high-frequency questions, good luck!
I’m sharing a front-end experience I had 3 months ago. The algorithm is extremely simple! I was so impressed with the design. Is FEEDBACK due to insufficient domain knowledge? ? ? 1: const data = [ { type: ‘phone’, co…
First Question Then provide sample code Analyze complexity, improve, analyze complexity Second Question Write a DOMStore: const node = document.getElementById('my-element') DOMStore.set(node, 'value') DOMStore.get(n…
Front-end technical interview All are based on past exam questions excludeItems - Classic question Dom Store - Classic question After solving two questions quickly, got rejected two days later. I was also left puzzle…
Event launcher and spatial analysis. Selecting the corresponding list based on the provided keys and values. Wishing everyone a happy holiday!
In February, a tic-tac-toe game on an m*n grid was discussed. Write a function to check if the game is finished by checking the four sides and two diagonal sides, then verbally discuss the test case.
Just finished the interview and wanted to share some feedback. DOMStore: Pay attention to the fact that a new local store will be generated when creating a new instance. clearAllTimeout: Pay attention to whether there …
From the store to vo-onsite and then to follow-up interview. Thanks to everyone for their help along the way. Those who provided assistance, thank you. All coding question are on frontendlead. GetTextBetweenNodes
For DOMStore, I was notified today that I passed, so the process was very fast. Thanks to the senior who referred me on the platform and the senior who shared the interview experiences earlier, it was really helpful!
Two questions, both related to front-end development. Regarding v dom I render, the follow-up is to add a functional component. About event emitter, asked about the differences between call and apply, whether or not to…
2 popular questions: emitter Write subscribe and execute using ES6 class, store event queue in an object, the follow-up is release. exclude First, convert the exclude array into a Map[key, Set(…values)]. Then, use f…
Two weeks ago, I interviewed for the front-end developer position at FB. I was asked two front-end questions, both of which were common topics. The interview process went well, with many follow-up questions. First quest…
Facebook front-end phone interview passed, waiting for onsite. Interview questions: 140 questions from BFE. The questions are not difficult. Question: What kind of system design topics can be expected in Facebook’s fro…
BFE Original Question: Improve a Function and Find the node in identical A/B DOM tree Onsite: Coding Round 1: Question 1: DOM store (cannot use symbol) Question 2: Implement unit test: it() expect() toBe() it(“sho…
