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What is Node.js and Express.js

niharikapujari profile image Niharika Pujari ・1 min read

What is Node.js?

Node.js is an open source, cross-platform runtime environment for developing server-side and networking applications. Node.js applications are written in JavaScript, and can be run within the Node.js runtime on OS X, Microsoft Windows, and Linux.

Why node.js?

  • better efficiency and overall developer productivity
  • code sharing and reuse
  • speed and performance
  • easy knowledge sharing within a team
  • a huge number of free tools

What is Express.js?

Express is a minimal and flexible Node.js web application framework that provides a robust set of features to develop web and mobile applications. It facilitates the rapid development of Node based Web applications. Following are some of the core features of Express framework −

  • Allows to set up middlewares to respond to HTTP Requests.

  • Defines a routing table which is used to perform different actions based on HTTP Method and URL.

  • Allows to dynamically render HTML Pages based on passing arguments to templates.

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