Node.js is a JavaScript runtime built on Chrome’s V8 JavaScript engine. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient. Node.js’ package ecosystem, npm, is the largest ecosystem of open source libraries in the world. In this article we will explain the steps of installing node.js and npm in CentOS.

Step 1: Add node.js yum repository

sudo yum install -y gcc-c++ make
sudo curl -sL https://rpm.nodesource.com/setup_6.x | sudo -E bash -

Step 2: Install node.js and NPM

sudo yum install nodejs

Step 3 : Verify

sudo node -v
v6.9.4

sudo npm -v
3.10.10