Implement a function to filter duplicates from an array. Why is Set not suitable for objects?
Frontend
Implement a fetchAll function that takes an array of URLs and a fetcher, and returns an array of results. How to make parallel and sequential requests?
What is the reason for your current job search? Why are you considering other places?
Which variant of the sorting element is better: with checkmarks (left) or with dots/circles (right)?
Which input field option is better from a UX perspective: with gray placeholder text or with a bold black header inside?
Look at the form layout (fields name, email, address, buttons). What's wrong with it from a design and UX perspective?
What are the critical moments for you when choosing a company and team?
What is better to use for a toggle switch with two states (on/off): toggle or checkbox?
Tell me more about the tasks at your current job, what was particularly interesting and challenging.
Do you write automated tests? Do you have experience writing tests?
Have you worked with native JavaScript, or mainly with frameworks?
Do you currently have offers or deadlines?
What will a regular user see if they insert this layout into a plain HTML document? (an outer div with a red border across the full width, height 100px, inside a square 100x100 with green borders)
What happens if there is an error in one of the requests in a for...of with await? How to handle errors without stopping the loop?
Which placement of the action button is better: in the center of the screen or at the right edge? (mobile interface)
If two more inner elements are added inside outer, how will they be arranged? How to arrange them horizontally?
Practical task: make a scroll inside the container (article), not on the body. Pin the buttons to the bottom of the container (sticky). Hide the scrollbar with styles.
How to optimize a script written for production?
What do you know about the company [company]? Have you had any work experience with it?
Implement a function to filter duplicates in linear time O(n) without using Set, by using an object as a hash table.