Frontend

What does the client.onNotification call physically return in the working application and why doesn't the synchronous try/catch protect against RPC error? How to fix this?

Tell us about your main achievement in your professional experience.

The task: a train is at a distance S from the city and is moving towards it at a speed V1. A fly flies between the train and the city at a speed V2, turning around upon reaching the train or the city, until the train reaches the city. How far does the fly fly?

Middle+

СБЕР

[name] explains how they choose a new workplace: what they pay attention to and which subject areas interest or displease them?

Middle

Pyrus

Are there data types that have no methods?

How was role-based access control implemented on the NestJS backend?

What is asynchronous in JavaScript, why is it needed, and how does the Event Loop work?

How does the process work without dedicated testers?

Middle

Pyrus

Why is notification grouping by date implemented as a separate module rather than a regular method?

How do you position yourself: front-end developer, full-stack developer, or product engineer? How independently do you work in a team, and how does this independence manifest in practice: can you independently complete a task or feature to the product?

Implement a basic REST service on Express for tasks: get list, create, update, and delete tasks.

Given the JavaScript code, determine what console.log will output in each call: when calling an object method directly, when calling a saved reference to a method, and inside setTimeout.

Middle

Pyrus

Is the given function a closure?

Conduct a code review of the Vue user management component: identify issues and suggest improvements. Do not consider CSS class names, HTML semantics, or styles; the users data are mock data.

Please tell me more about Claude: did you connect it to the project or use it as a tool for individual questions and tasks?

What is the difference between asynchrony and parallelism? What mechanisms in JavaScript allow for concurrent work?

Implement a function memo(fn, lifetime) that returns a new function and caches the result of the original function without arguments for a specified lifetime in milliseconds. It should cache only the last result, without keys and Map; a repeated call within the lifetime should return the cached result.

Complete the if condition in the provided TypeScript task to correctly narrow the type and make the condition true.

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Please tell me about an interesting problem you've encountered recently.