Ruby on Rails vs Node.js - which technology is better for your app?

Node.js and Ruby on Rails are two popular solutions used in web development. Both loved for their simplicity, speed of development, and easy code maintenance, they are often compared and seem to be good alternatives to Python, Java, PHP or .NET.While Ruby on Rails is based on the Ruby language, Node.js represents a “JavaScript everywhere” paradigm, unifying web application development around a single programming language, rather than different languages for server side and client side scripts.When Ruby on Rails was first introduced, it was quickly appreciated for its simple and readable, English-like syntax. However, RoR’s popularity has been slowly declining over the past few years. And even though the decline of RoR is rather slow, we can notice that every time it tries to recover after its minor declines, it rarely gets back to the previous level.