Frontend

Have you ever worked with data stored on the frontend, such as IndexedDB, when the work continues locally after loading?

Middle

Бюро 1440

How to extend an existing interface from a library without rewriting it completely?

[name] talks about their long-term development plans and what they would like to learn or try technically.

Middle

Pyrus

After switching to streams, a weekly report is generated in a minute, a monthly report in 10 minutes, and a quarterly report in two hours. What could be the reasons and what needs to be done?

What are the pros and cons of CSS-in-JS for a large project?

How would you change the product and technical approach to report generation so that the user does not wait for the synchronous formation of a large PDF?

What is a Promise and what are its states?

What other state managers did [name] use besides React Redux?

How many front-end developers were in your team?

In the given code, can you catch an exception with try/catch? How to properly handle a rejected Promise without await?

What will be created after creating counters and what values will be output?

How is the overall work environment in the company, do you like the job?

How do you determine which indexes are missing and on which fields to add indexes?

What happens during the browser rendering stage: Style calculation, Layout/Reflow, Paint, and Compositing?

Why is asynchrony needed in programming languages and what is the problem with synchronous waiting for a response?

What do you know about the company "Bureau 1440" and the project?

Middle

Бюро 1440

What is a closure in JavaScript? Explain with an example of a counter.

What rules of hooks are violated if a hook is called after a conditional return or inside a condition?

What does it mean that props did not change in the context of React.memo?

Implement a map function for an iterator that transforms its values, for example by multiplying each random number by 2.

Middle

МТС Digital