Электронные офисные системы

What is Virtual DOM? Why is it needed? When is it built? Can there be multiple React instances in one application?

What is a Source Map?

What is the problem with using enum in TypeScript when compiling to JavaScript? What can replace enum?

What approach does React use — imperative or declarative? What is the difference?

What is your experience working with TypeScript? Have you worked with generating type packages?

There is an array of objects with a 'value' field. How to create a new array containing only the numeric values from these objects (excluding strings)? How to do this and how to check if a value is a number?

There is an array of strings representing item numbers of a hierarchical numbered list (e.g., '1', '1.1', '1.2', '1.10', '2', '2.1'). How to sort them correctly using the standard sort function with a callback?

Tell us about yourself and your work experience.

What is the difference between interface and type in TypeScript? When should each be used?

Are you familiar with bundle optimization, chunk splitting, lazy loading, and dynamic imports?

There is an array of numbers, some of which are repeated. How to create a new array without repetitions, preserving the order of numbers? How to solve the problem without using Set?

Какие utility-типы в TypeScript ты использовала? Знакома ли с ReturnType?