JavaScript Developer

Description

Auto-generated position for JavaScript Developer

Interview Questions (37)

Q1Which JavaScript framework do you prefer for building user interfaces and why?
Technical
Q2Can you explain how you manage state in a React application?
Technical
Q3Can you explain how you would optimize the performance of a React application?
Technical
Q4What frameworks or libraries have you used for building responsive user interfaces, and how did you decide which one to use for a project?
Technical
Q5Describe a time when you had to work closely with a designer. How did you handle any differences in opinion?
Behavioral
Q6Describe your experience with frontend frameworks like React or Vue.
Experience
Q7What is your approach to debugging JavaScript?
Technical
Q8What is a closure?
Technical
Q9What is the difference between a promise and a callback?
Technical
Q10Explain the this keyword in JavaScript.
Technical
Q11What is asynchronous programming and what does this mean in JavaScript?
Technical
Q12What’s a closure refer to in JavaScript, can you provide an example of one?
Technical
Q13What does ‘use strict’; do when placed in a function? Why don’t we see it used as often in modern JavaScript code?
Technical
Q14Please explain your understanding of semantic versioning, and why one might adhere to it when creating tools for developers.
Technical
Q15What is happening when you call ‘foo’.charAt(0); Is there a difference between const x = “taco”; and const x = new String(“taco”);?
Technical
Q16Please explain JavaScript’s inheritance model.
Technical
Q17Can you name two programming paradigms that are important for JavaScript developers to know?
Technical
Q18How would you explain state management to someone with no technical background?
Behavioral
Q19How do you approach explaining technical concepts to non-technical stakeholders?
Behavioral
Q20What questions do you have for us?
Reverse
Q21How do you structure a JSON with data that does a thing?
Technical
Q22How do you add an event listener to an element?
Technical
Q23What is the difference between null and undefined?
Technical
Q24What is the difference between cookies, sessionStorage, and localStorage?
Technical
Q25What are closures, and how/why would you use them?
Technical
Q26Can you explain what event delegation is in JavaScript?
Technical
Q27What are promises, and how do they work?
Technical
Q28What are service workers, and what are they used for?
Technical
Q29How does the event loop work in JavaScript?
Technical
Q30What are the different ways to handle asynchronous operations in JavaScript?
Technical
Q31How do you handle state management in single-page applications?
Technical
Q32What is tree shaking, and how does it help with the performance of a web application?
Technical
Q33Can you explain how React Fiber works?
Technical
Q34How do you handle memory leaks in JavaScript applications?
Technical
Q35What are the differences between microtask and macrotask queues?
Technical
Q36What are Custom Hooks in React?
Technical
Q37How do you approach debugging in your projects?
Behavioral