Node.js–A Great New Way to Build Web Apps
- Neutral Language
Node.js effectively solves the concurrency problems that plague developers unilaterally. The problem of concurrency in server-side programming languages often causes poor performance and impacts the throughput and scalability of an application. Developers get an event driven architecture with Node.js and non blocking I/O API which takes care of these issues. Node.js is also built to handle asynchronous I/O’s from the base up. This helps in managing many web development related problems.
Node.js also splits a single process into multiple processes called workers by adopting the cluster module. This modules allows developers to create ‘child processes’ that can function under the ‘parent process’ and can communicate with the parent Node by sharing the server handles and by using IPC (Inter-process communication).
Furthermore, applications in Node.js are easier to scale since the developers write simple code and Node.js simply takes over from there. Instead of using processes and threads, Node.js uses a simple Event Loop and defined call backs where the server automatically enters the loop when the callback definition ends for scaling efficiently. Simply put, Node.js helps applications execute common tasks like reading or writing to the filesystem, reading or writing to the network connections or to the database with ease and speed and makes applications capable of managing a large number of simultaneous connections with high throughput.
- Built-in support
Node.js has an inbuilt support for package management using the NPM, the Node Package Manager, a tool that comes as a default with Node.js installations. The NPM module is publicly available, has reusable components and is easily available through an online repository of over 300,000 packages with dependency and version management. This ecosystem encourages sharing and is open to all and gives developers more prospects to create effective solutions by giving them the opportunity to update, share and reuse code with ease.
- Great for real-time web applications
Along with all this, Node.js can also be used as a proxy server if the enterprise does not have the infrastructure for proxy. It also allows for actual data streaming and does not take HTTP requests and responses as isolated events and reduces processing time. Node.js applications are also capable of dealing with high loads. In 2013 Walmart put their entire traffic on Black Friday through Node.js and ensured that their servers did not exceed 1% of server utilization despite having 200, 000, 000 users online.
Node.js has all the features that make it most appealing to the developer community and also renders it enterprise ready – it’s easy to scale, is secure and easy to learn. It also takes care of low latency issues that plague most tech companies because of the asynchronous input-output operations feature. Adding it all together, it is clear that with Node.js organizations can achieve more as it half the number of developers can be used to build products. It also reduces the number of required servers to service a client and increases app performance by reducing load times by almost 50%. Given the increasing industry confidence on Node.js, it is quite clear that its future is indeed bright.