How does Node.js handle asynchronous operations, and what are the differences between callbacks, promises, and async/await? Can you explain the event loop in Node.js and how it affects performance, especially when dealing with I/O-bound tasks? What is the purpose of middleware in Express.js, and can you provide an example of how you would create and use custom middleware in an application?
Most of the questions were related to the assignment with some extra ones about system design and JS experience (no algorithms or JS brain teasers).
Por que decidiu entrar na área.
Design an tinyURL service on the board How did you do async operations before async/await?
Scenario-based questions SQL injection Validations Test environments Software engineering concepts
1. Let vs var vs const, currying in JS, object destructuring etc
panel asked more questions on Javascript and related to projects that I have worked
eventloop, cluster module, closures in js
asked about work related projects, than went on for js question and than 2 coding questions and 1 system design question
The basic of node js.
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