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REDVision Global Technologies
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I applied via Approached by Company and was interviewed in May 2024. There was 1 interview round.
Node.js achieves asynchronous behavior through event-driven architecture and non-blocking I/O operations.
Node.js uses event-driven architecture to handle asynchronous operations.
It utilizes non-blocking I/O operations to allow multiple operations to be executed concurrently.
Node.js uses callbacks, promises, and async/await to manage asynchronous code execution.
Example: Using callbacks in Node.js to handle asynchronous
Lookup in MongoDB is used to perform a left outer join to retrieve documents from another collection.
Lookup is used to combine data from two collections based on a common field.
It is similar to a SQL join operation.
Lookup is used in aggregation pipelines to fetch related documents from another collection.
Example: db.collection.aggregate([{ $lookup: { from: 'anotherCollection', localField: 'field', foreignField: 'field'
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posted on 7 Apr 2024
I have 2 years of experience in ReactJS, including building interactive user interfaces and integrating with backend services.
Developed a responsive web application using ReactJS, Redux, and Material-UI
Implemented RESTful APIs to fetch and update data in the application
Utilized React Router for client-side routing and navigation
Worked on optimizing performance by using memoization and lazy loading techniques
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