What is Node.js
Node.js is an open-source, a server-side script that runs on the top of Google’s open-source scripting engine V8. Node.js is fast, lightweight, and efficient. It uses the asynchronous mode of operation, event-driven Input/Output rather than using the traditional threads or separate threads for each process.
Node.js has transformed an age-old standard which was based on a stateless web & request-response. With Node.js we’ve finally entered into the realm of real-time web applications with two-way connections, where server and client both can start the communication by exchanging the data freely. Node.js was first unveiled in 2009 at the annual European JSConf by Ryan Dahl. Initially, Node.js was sponsored as an open-source project by hosting solutions and cloud computing provider Joyent.
Some of the major factors why should use Node.js:
- Speed & Performance:
Node.js helps enterprises build fast, flexible network applications that can handle parallel connections with high throughput. PayPal has reported 35% less in its response time with double the number of requests received per second after deploying Node.js applications.
- Best for Real-Time Web Application:
Node.js provides real-time 2-way communication, communication between the server and the client. And that, in turn, is a model to distribute workloads among service providers (server) and service requests (clients).
- Good for Streaming based apps:
Web frameworks treat HTTP requests and responses as whole data objects. Node.js very good at handling I/O, So we can take advantage and build some amazing things also. You can transcode an audio and video file while they are uploading. Node.js also can read and write streams to WebSockets so it can read and write streams to HTTP.
- Open-source & Stimulate Sharing:
Node.js is open-source and free. Node.js comes with NPM (Node Package Manager) which offers libraries that are built by the awesome community which will solve almost all the generic problems related to the Node.js. Npm has packages that are used in our apps to make the development process faster and more efficient.
- Developer Productivity:
Node.js increases developer efficiency if it has been used as a full-stack development platform. One developer working on frontend and backend both reduces the risk of communications gaps, bugs, and the ability to fix the issues.
- Hosting & Deployment:
Node.js is platform-independent and supported by almost operating systems. Node server runs in its process and one can use a proxy server to handle request/response, thus doesn't need any heavy web or application server or any additional infrastructure to run. With the use of NPM modules, the deployment process is quite easy and can be one command deployment.