NS Guidebookode.J: Comprehensive guide to learn Node.js

The asynchronous form of methods accepts the callback as a last argument. The callback function can have different arguments based on the method however, the first argument is always an exception object.

The parse() method can be used to deserialize a query string to an object. It also allows to override the default separator and assignment characters.

Note: The JavaScript standards for console and desktop applications as well as for Web server are defined by a group of volunteers which are recognized as CommonJS]

A module in Node.js can be compared to a JavaScript library which contains functions that can be included in a code. The functionality of modules may be organized in one or more JavaScript files.

A framework may contain libraries, other programs, programming interfaces, tools for developing software, etc.

A framework can be seen as a layered structure that indicates the type of codes or programs that can be built and how these can be interrelated.

Redux maintains the state of an entire application by using a single immutable object that cannot be modified directly.

It adds more features to Node.js specially for making the Web servers development easier by providing built-in methods, for example, for easily working with routes

Express is a minimal and flexible Web application framework built on top of Node. js. It is a feature-rich framework for creating Web and mobile applications.

Thus, AJAX is used on client-side for asynchronous communication with the server whereas Node.js is used to create a server using JavaScript.