Pramati Technologies Senior Development Engineer Interview Questions and Answers

Event Loop in JavaScript manages asynchronous operations by executing callback functions in a non-blocking way.

• Event Loop continuously checks the call stack and the callback queue.

• It moves tasks from the callback queue to the call stack when the call stack is empty.

• This allows JavaScript to handle asynchronous operations without blocking the main thread.

• Example: setTimeout() function adds a task to the callback queue a

Solid Principles are a set of five design principles for writing clean, maintainable, and scalable code.

• Single Responsibility Principle: A class should have only one reason to change.

• Open/Closed Principle: Classes should be open for extension but closed for modification.

• Liskov Substitution Principle: Objects of a superclass should be replaceable with objects of its subclasses without affecting the program's correctness...read more

Web Components are a set of web platform APIs that allow you to create new custom, reusable, encapsulated HTML tags to use in web pages and web apps.

• Web Components consist of four main technologies: Custom Elements, Shadow DOM, HTML Templates, and HTML Imports.

• Custom Elements allow developers to define their own custom HTML elements.

• Shadow DOM provides encapsulation for the custom elements, ensuring that styles and scr...read more