Front-end-Developer-Interview-Questions
A list of helpful front-end related questions you can use to interview potential candidates, test yourself or completely ignore.
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Quick Overview
The Front-end Developer Interview Questions repository is a comprehensive collection of interview questions for front-end developers. It provides a wide range of questions covering various aspects of front-end development, including HTML, CSS, JavaScript, and general web development concepts. The project aims to help both interviewers and job seekers prepare for front-end developer interviews.
Pros
- Extensive coverage of front-end development topics
- Community-driven and regularly updated
- Available in multiple languages
- Useful for both interviewers and job seekers
Cons
- May not include company-specific or advanced specialized questions
- Some questions may become outdated as technologies evolve
- Lacks detailed answers or explanations for the questions
- May not reflect the specific requirements of all companies or positions
Competitor Comparisons
⚡️ Front End interview preparation materials for busy engineers
Pros of front-end-interview-handbook
- Provides detailed answers to common interview questions
- Includes code examples and explanations for complex topics
- Regularly updated with new content and improvements
Cons of front-end-interview-handbook
- May be overwhelming for beginners due to its comprehensive nature
- Focuses more on technical details than soft skills or interview strategies
- Some answers might be too specific, potentially limiting broader understanding
Code Comparison
Front-end-Developer-Interview-Questions:
// No code examples provided in the repository
front-end-interview-handbook:
// Example: Implementing debounce function
const debounce = (func, delay) => {
let timeoutId;
return (...args) => {
clearTimeout(timeoutId);
timeoutId = setTimeout(() => func(...args), delay);
};
};
The Front-end-Developer-Interview-Questions repository primarily consists of a curated list of questions without providing answers or code examples. In contrast, the front-end-interview-handbook offers detailed explanations and code snippets, making it more comprehensive for interview preparation.
While Front-end-Developer-Interview-Questions serves as an excellent resource for understanding the scope of potential interview topics, front-end-interview-handbook goes a step further by providing in-depth answers and practical examples. This makes it particularly useful for candidates looking for a more thorough understanding of front-end concepts and their applications in real-world scenarios.
List of 1000 JavaScript Interview Questions
Pros of javascript-interview-questions
- More focused on JavaScript-specific questions, providing in-depth coverage of the language
- Includes code examples and explanations for each question, enhancing understanding
- Regularly updated with new questions and modern JavaScript concepts
Cons of javascript-interview-questions
- Limited coverage of other front-end technologies (HTML, CSS, frameworks)
- May be overwhelming for beginners due to its extensive and detailed content
- Less community-driven compared to Front-end-Developer-Interview-Questions
Code Comparison
Front-end-Developer-Interview-Questions (HTML question):
<div id="example">
<p>This is a paragraph.</p>
</div>
javascript-interview-questions (JavaScript question):
function createBase(baseNumber) {
return function(N) {
return baseNumber + N;
}
}
var addSix = createBase(6);
console.log(addSix(10)); // returns 16
The Front-end-Developer-Interview-Questions repository provides a broader range of topics covering various aspects of front-end development, while javascript-interview-questions focuses specifically on JavaScript, offering more detailed explanations and code examples for each question. Front-end-Developer-Interview-Questions is more community-driven and suitable for assessing overall front-end knowledge, whereas javascript-interview-questions is better for in-depth JavaScript preparation.
A long list of (advanced) JavaScript questions, and their explanations :sparkles:
Pros of javascript-questions
- Focuses specifically on JavaScript, providing in-depth coverage of language concepts
- Includes detailed explanations for each question, aiding in learning and understanding
- Regularly updated with new questions and improvements
Cons of javascript-questions
- Limited to JavaScript, not covering other front-end technologies or concepts
- May be too advanced for beginners or those new to JavaScript
- Lacks practical, project-based questions that simulate real-world scenarios
Code Comparison
Front-end-Developer-Interview-Questions example:
<div id="example">
<p>Hello, <span>world!</span></p>
</div>
javascript-questions example:
function example() {
console.log(typeof typeof 1);
}
example();
The Front-end-Developer-Interview-Questions repository tends to include more diverse code examples covering HTML, CSS, and JavaScript, while javascript-questions focuses solely on JavaScript-specific code snippets and concepts.
Both repositories serve as valuable resources for developers preparing for interviews or improving their skills, with Front-end-Developer-Interview-Questions offering a broader range of topics and javascript-questions providing a deep dive into JavaScript intricacies.
A curated collection of common interview questions to help you prepare for your next interview.
Pros of 30-seconds-of-interviews
- Concise answers with code snippets for quick reference
- Covers a wide range of topics beyond front-end development
- Regularly updated with new questions and answers
Cons of 30-seconds-of-interviews
- Less comprehensive than Front-end-Developer-Interview-Questions
- May not provide in-depth explanations for complex topics
- Focuses more on specific coding questions rather than broader concepts
Code Comparison
30-seconds-of-interviews:
const debounce = (func, delay) => {
let timeoutId;
return (...args) => {
clearTimeout(timeoutId);
timeoutId = setTimeout(() => func(...args), delay);
};
};
Front-end-Developer-Interview-Questions: (No specific code snippets provided, as it primarily consists of questions without answers)
Summary
30-seconds-of-interviews offers quick, concise answers with code examples, making it ideal for rapid review. It covers a broader range of topics and is frequently updated. However, it may lack the depth and comprehensiveness of Front-end-Developer-Interview-Questions, which provides a more extensive list of questions but without answers. The choice between the two depends on whether you prefer ready-made answers or a more comprehensive question set to guide your study.
Everything you need to prepare for your technical interview
Pros of interview
- Covers a broader range of topics beyond front-end development
- Includes system design and behavioral questions
- Provides more in-depth explanations and solutions for some questions
Cons of interview
- Less focused on front-end specific topics
- May not be as up-to-date with the latest front-end technologies
- Lacks community-driven contributions and updates
Code Comparison
Front-end-Developer-Interview-Questions:
function duplicateEncode(word) {
return word
.toLowerCase()
.split('')
.map((char, index, array) =>
array.indexOf(char) === array.lastIndexOf(char) ? '(' : ')'
)
.join('');
}
interview:
def is_palindrome(s):
s = ''.join(c.lower() for c in s if c.isalnum())
return s == s[::-1]
The Front-end-Developer-Interview-Questions example showcases a JavaScript function for encoding characters based on their uniqueness, while the interview example demonstrates a Python function to check if a string is a palindrome. This reflects the different focus areas of the two repositories, with Front-end-Developer-Interview-Questions emphasizing front-end specific tasks and interview covering more general programming concepts.
A complete computer science study plan to become a software engineer.
Pros of coding-interview-university
- Comprehensive curriculum covering a wide range of computer science topics
- Structured learning path with clear goals and milestones
- Includes resources for both theoretical knowledge and practical coding skills
Cons of coding-interview-university
- Primarily focused on general software engineering, less emphasis on front-end specifics
- May be overwhelming for beginners due to its extensive content
- Requires significant time commitment to complete the entire curriculum
Code comparison
While Front-end-Developer-Interview-Questions focuses on front-end specific questions, coding-interview-university covers a broader range of topics. Here's a comparison of example questions:
Front-end-Developer-Interview-Questions:
// What is the output of the following code?
console.log(typeof typeof 1);
coding-interview-university:
# Implement a function to reverse a linked list
def reverse_linked_list(head):
prev = None
current = head
while current:
next_node = current.next
current.next = prev
prev = current
current = next_node
return prev
The code examples demonstrate the difference in focus between the two repositories, with Front-end-Developer-Interview-Questions targeting JavaScript and front-end concepts, while coding-interview-university covers more general programming and data structure topics.
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Front-end Developer Interview Questions
This repository contains a number of front-end interview questions that can be used when vetting potential candidates. It is by no means recommended to use every single question here on the same candidate (that would take hours). Choosing a few items from this list should help you vet the intended skills you require.
Note: Keep in mind that many of these questions are open-ended and could lead to interesting discussions that tell you more about the person's capabilities than a straight answer would.
You can read more about this project & its history here.
Table of Contents
- General Questions
- HTML Questions
- CSS Questions
- JS Questions
- Accessibility Questions (external link)
- Testing Questions
- Performance Questions
- Network Questions
- Coding Questions
- Fun Questions
Getting Involved
The project is currently maintained by:
Contributors
Feeling inspired? Check our Contributing guide to get started!
License
Copyright (c) Contributors of the Front-end Developer Interview Questions
Top Related Projects
⚡️ Front End interview preparation materials for busy engineers
List of 1000 JavaScript Interview Questions
A long list of (advanced) JavaScript questions, and their explanations :sparkles:
A curated collection of common interview questions to help you prepare for your next interview.
Everything you need to prepare for your technical interview
A complete computer science study plan to become a software engineer.
Convert designs to code with AI
Introducing Visual Copilot: A new AI model to turn Figma designs to high quality code using your components.
Try Visual Copilot