Node.js

What is the difference between using variables declared with var and let in the context of closures?

What method of CSS isolation do you prefer?

If several contexts are bound sequentially, which context will be in the end?

If a link looks like a button, should it still be styled as a button?

What problem was the virtual DOM created to solve?

What is the purpose of Set in JavaScript?

What are data-attributes?

Is it possible to make a request without using cookies?

What is a weak reference in JavaScript?

What can block the rendering of an HTML page?

What is doctype?

How to check if a value is NaN?

What is optimization in the context of software development?

What are async/await and what are they used for?

What does the call function do in JavaScript?

What is the purpose of the package-lock.json file?

What design patterns have you used in practice?

How does Node.js work?

How does an HTML form work and what is needed to submit it?

What are the scenarios for implementing the Event Loop in Node.js?