Technical Interview Questions
Vue.js is a progressive framework of JavaScript used to create Dynamic User Interfaces and single-page applications. For an interview question asking about Vue.js, a correct answer could be: “Vue.js is a progressive JavaScript framework used for building user interfaces. It’s designed to be incrementally adoptable, meaning that it can be easily integrated into existing projects. … Read more
The Node.js TTY module contains tty.ReadStream and tty.WriteStream classes. In most cases, there is no need to use this module directly. You have to used require (‘tty’) to access this module. Syntax: var tty = require(‘tty’); The Node.js tty module contains functionality related to terminal input and output. It provides an interface for working with … Read more
The Punycode is an encoding syntax which is used to convert Unicode (UTF-8) string of characters to ASCII string of characters. It is bundled with Node.js v0.6.2 and later versions. If you want to use it with other Node.js versions, then use npm to install Punycode module first. You have to used require (‘Punycode’) to … Read more
Although, Events and Callbacks look similar the differences lies in the fact that callback functions are called when an asynchronous function returns its result whereas event handling works on the observer pattern. Whenever an event gets fired, its listener function starts executing. Node.js has multiple in-built events available through the events module and EventEmitter class … Read more
In Node.js, event-driven programming means as soon as Node starts its server, it initiates its variables, declares functions and then waits for an event to occur. It is one of the reasons why Node.js is pretty fast compared to other similar technologies. In Node.js, event-driven programming is a paradigm where the flow of the program … Read more