Node.js

In what case and for what purpose is the 'undefined' value used in JavaScript as a return result of a function?

What do you do if you receive a task that exceeds your current responsibilities or authority?

What motivates you to seek a new professional opportunity instead of your current job?

How often do you suggest new ideas or approaches to your team or project?

Can you list the existing versions of the HTTP protocol and their main differences?

Can you list the data types in JavaScript that are considered primitive types?

Describe your experience with using and configuring PostgreSQL, as well as the features of working with this database.

Junior — Middle

Бизнес-АзимутРосатомСБЕР

Can you explain the Singleton design pattern and its application?

Explain the purpose and role of the primary key in a database.

How to process parallel balance deduction operations sequentially to avoid double deduction (race condition)?

How do you improve your professional skills currently?

Could you describe the main principles underlying transactions in databases?

What is the difference between local time and Moscow time in the context of this application?

How regularly did you propose new ideas or initiatives to improve the team's work?

What tools or utilities do you prefer to use when working with TypeScript?

What operating system do you have installed and why?

Junior — Middle

Росатом

What level of test coverage do you use when developing your code?

What leisure activities do you prefer in your free time besides work?

Can you name the different levels and stages of development in the Node.js ecosystem?

What is the difference between INNER and LEFT JOIN types when working with tables in SQL?