Node.js is a runtime environment that allows the execution of JavaScript code server-side, using the V8 engine. It enables non-blocking, event-driven architecture, making it suitable for building scalable network applications.
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About Node.js
Node.js was created in 2009 by Ryan Dahl to address the limitations of traditional web servers, particularly the inefficiency of handling multiple concurrent connections. It utilized the V8 JavaScript engine to enable server-side scripting, allowing developers to use JavaScript for both client and server development.
Node.js strengths include its non-blocking I/O, single-threaded event loop, and large ecosystem with npm. Weaknesses involve callback hell, single-threaded limitations for CPU-intensive tasks, and potential security issues. Competitors include Python with Django or Flask, Ruby on Rails, and Java with Spring Boot.
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How to hire a Node.js expert
A Node.js expert must have proficiency in JavaScript, understanding of asynchronous programming and Promises, experience with Express.js or similar frameworks, knowledge of RESTful API design, familiarity with databases like MongoDB or PostgreSQL, and competence in using npm for package management.
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