Let’s go through the benefits and drawbacks of Node.js:
As Node.js works on non-blocking I/O model, it is the best for handling the large volume of requests from the web and other networks. Node.js web application can perform an asynchronous task to the event loop (a single threaded loop), along with the call back function and then continue to execute the rest of the program. After completing asynchronous operations, event loop returns to the task to execute call back. Incoming requests are queued up and executed sequentially in a fast manner achieving high scalability levels.
Caching is a technique to improve the performance of any application, be it desktop, mobile or web. The open source run environment of Node.js supports caching of individual modules. Modules get cached in the node.js web application memory whenever there is any module request for the first time. This caching feature enables the application to load the web pages and respond to the user requests quickly, without requiring the module code to be re-executed.
One of the key problems that developers encounter in Node.js is that API keeps on changing at some intervals and the new API of Echma script adds significant new syntax for writing complex applications including classes and modules. Thus, programmers are bound to modify the existing code base to match the compatibility with the latest version of Node.js API.
As Node.js doesn’t support multi-threaded programming, it is usually not recommended for performing long-running calculations. Heavy computations queue up the incoming requests which can lead to a decrease in performance. The whole process increases the time required by a node.js web application to respond to the users’ request and makes it difficult to use the runtime environment for the computational intensive task.
Wrapping it up…
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