Frontend

Have you worked with SSR and what is it?

What operating system do you work on and how familiar are you with Linux commands?

Are you willing to complete a test task of about 4–5 hours with deliberately incomplete requirements that will need clarification?

Why use variables and semantic styles like font-heading-h1 instead of just setting styles for h1/h2 tags in global CSS?

What is the difference between ref and reactive in Vue and when should each be used?

When is it advisable to switch from SPA to SSR and why is it necessary?

Middle

МТС Digital

Name examples of algorithms and data structures with linear, quadratic, and logarithmic complexity. What is the complexity of element search in an array and quicksort?

Middle

МТС Digital

How is the nearest CDN server determined?

Middle+

Т-Банк

How to avoid the situation where, after quickly changing the user search query, the previous results are displayed even though all requests have completed successfully?

Implement a Promise.all polyfill: what does it accept as input and how should it work on success, error, and empty array?

Middle

МТС Digital

How does Map differ from a regular object?

Middle

МТС Digital

How did you debug Telegram Mini App: did you use tunneling, Cloudflare, or a white IP?

How does onboarding and probation period go? What are the expectations from a new employee?

How to get the oldest key from a Map in constant time?

Middle

МТС Digital

How was the chessboard displayed in the chess application: Canvas, WebGL, or another approach? Was there experience working with Canvas/WebGL?

What is an iterator and why is it needed?

Middle

МТС Digital

Conduct a code review of the Vue component fragment in script setup: suggest improvements and possible fixes.

What architecture patterns do you know and which ones do you apply in your work?

Middle

МТС Digital

Have you worked with CI/CD, set it up or written anything for it?

In JavaScript, which is greater: 0.1 + 0.2 or 0.3? Why?