- Node.js Architecture
- How Node.js Works
- Node.js Features
How Node.js Works
In addition to his work on Node.js, Dahl has also contributed to a number of other open-source projects over the years.
To support further the node.js developers, a lot of foundations have been built and founded. One of them is The Node.js Foundation a non-profit organization that was dedicated to promoting and advancing the Node.js platform.
Node.js uses an event-driven architecture where callbacks are used to handle incoming requests. When a request is received on the server, it is added to an event queue. The event loop picks up the event at the head of the queue and processes it accordingly. The event loop processes these events in a single-threaded environment, which makes Node.js lightweight and fast.
Node.js has a built-in module system that allows developers to reuse code across projects. Modules encapsulate the code and provide a simple interface for other modules to interact with the code. The module system also provides mechanisms for loading third-party code from the npm registry. The npm registry contains over a million packages that can be easily installed and used in Node.js applications.
How Node.js Works
Node.js is built on non-blocking I/O, which means that it can handle multiple requests at the same time without blocking other requests. When a request is received, it is added to a queue and processed by the event loop. The event loop processes the request asynchronously, which allows the server to handle other requests while waiting for I/O operations.
Node.js uses asynchronous execution to avoid blocking the event loop. Asynchronous execution means that code execution is not stopped while waiting for I/O operations. Instead, Node.js moves on to the next piece of code until the I/O operation is completed. When the I/O operation is completed, Node.js picks up the callback function and executes it.
Single-Threaded Event Loop
Node.js uses a single-threaded event loop to handle incoming requests. The event loop processes events in a non-blocking manner, which allows the server to scale easily by handling multiple requests concurrently. In addition, the event loop is designed to be predictable, which means that large numbers of concurrent requests can be handled without the server slowing down.
Node.js is primarily used for backend development, which includes building web applications, APIs and services. Node.js provides a scalable and efficient platform for building backend services that can handle large amounts of traffic with ease.
Node.js is an open-source platform, which means that it is available for anyone to use and contribute to. The Node.js community is vibrant and active, with thousands of developers contributing to the project every day.
Scalable Web Server
Node.js server provides a scalable web server that can handle large amounts of concurrent open connections without slowing down. The web server is highly customizable and can be configured to meet the specific needs of a web application.