junior node js developer interview questions

Garbage collection is a process used by v8 to reclaim memory from unused objects and variables. V8 uses garbage collection algorithms to determine which parts of v8 heap can be released and reclaimed. V8 runs garbage collection periodically, so developers should ensure their applications use v8 resources efficiently to minimize garbage collection occurring. Garbage collection can also be manually triggered by calling the v8.gc() method. This can be used to force garbage Web development collection and reclaim memory when needed. In contrast, promises are objects that represent the result of an asynchronous operation.

Explain the useEffect hook in React?

TypeScript | NestJS | My Barista App – Fetch rating of a coffee type – Implement a new feature for listing previously rated coffee types in the NestJS REST service for rating coffee types. TypeScript | NestJS | My Barista App – Listing rated coffee types – Implement NestJS REST service for rating and recommending coffee types. Node.JS | Rest API junior node js developer | News backend service – Implement a news backend service created in Node.JS with Vanilla JS including writing authorization and Rest APIs. In your pursuit of Node JS Developers, we stand ready to assist in finding top talent swiftly. With our services, you can expect to be matched with five highly-qualified Node JS Developers within just minutes. Let us streamline your recruitment process and connect you with the skilled professionals you seek to meet your needs effectively.

What is the V8 JavaScript Engine?

This frees up time and resources, enabling them to focus on creating and deploying new features. Additionally, it offers cost savings, as clients only pay for the actual usage of services, and it can potentially improve scalability and performance. Showcasing your knowledge of serverless architecture demonstrates that you stay up-to-date with industry trends and possess valuable skills. The concept of load balancing is an essential aspect of backend development, and interviewers want to ensure you have a solid understanding of it. Load balancing involves distributing incoming network traffic across multiple servers to ensure that no single server is overwhelmed, which can lead to slow response times or even server crashes. By gauging your knowledge of load balancing, interviewers can determine your ability to create efficient and scalable systems that can handle high traffic without compromising the user experience.

junior node js developer interview questions

What is Angular?

Additionally, we have outlined a set of suggested practices to ensure that your interview questions accurately measure the candidates’ Node skillset. The setImmediate() function is used to execute a callback function immediately after the current event loop cycle, i.e., after the I/O events in the Node.js event loop have been processed. It is similar to setTimeout() with a delay of 0 milliseconds, but it differs in terms of when the function is executed. Tracing is a technique used in Node.js to profile the performance of an application.

junior node js developer interview questions

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