Is JavaScript a multi-threaded programming language?
Middle
143
Frontend
6388
681
Async/await is often called syntactic sugar over promises. How do you understand this expression? What does 'syntactic sugar' mean?
Middle
141
Can micro frontends interact with each other? How would you organize their communication and data exchange?
Middle+
140
Implement the Function.prototype.bind method — a function that takes a context and returns a new function with the bound context.
Middle+
138
If you throw a ref-reference to a class component, the ref value will be an instance of the class. Is it possible to do something similar with a functional component — pass a ref and get, for example, a function declared inside the component?
Middle
137
What rendering strategies do you know and in which cases should they be applied?
Middle+
132
What mode and type of tasks are most comfortable for you: calm problem solving, intensive technical growth, or managerial challenge? Tell us what you are looking for in your next job.
Middle+
131
Do you have the skill to assemble interfaces, work with UI?
Senior
128
Look at the code of a React application (Todo list) and fix the problems: API request handling, state management, error handling, adding new tasks, marking tasks as completed.
Middle+
127
Will the solution change if the object has deeper levels of nesting?
Middle+
126
What are the disadvantages and risks associated with independent deployment of micro frontends?
Middle+
124
Do you need IT accreditation?
Senior
123
What is the difference between storing data in an array and in an object in terms of memory? Which storage method (two-dimensional array or two-dimensional object) is easier on memory?
Middle
119
Please tell us about yourself, your experience at your last job, the main specifics, the tech stack — everything you think is necessary to share.
Middle+
110
What kind of competitions and project contests were these?
Middle+
110
Implement a tree structure React component based on data from messages.ts: elements can have children, parent nodes should expand and collapse on click, leaves should not have a toggle, and the nesting level can be arbitrary.
Middle+
110
What is the difference between micro frontends and NPM packages?
Middle+
108
Have you used useLayoutEffect and in which cases?
Middle+
108
How to prevent race conditions in useFetch if the URL has changed, the second request finished earlier than the first, and the first then overwrote the current data?
Middle+
108
Imagine a large project with twenty teams, for which you are responsible for the frontend. How do you ensure that the frontend does not degrade, and how do you detect if one of the teams has worsened its performance? What frontend metrics and technical tools do you use to monitor this?
Middle+
106