What is Node.js?
From its inception, Node.js was designed to serve as an efficient backend for web applications. Because of that, it was widely adopted by companies of all sizes and industry types. Trello, LinkedIn, PayPal, and NASA are some of the companies that use Node.js in multiple parts of their technology stack.
But what is an execution environment? An execution environment provides basic functionality, such as APIs, for a programmer to write applications. Think about the browser, for example – it has the DOM, objects such...