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Grunt - A command line JavaScript task runner.

Grunt is a JavaScript task runner that will help you to mini-fy the various JS files. It will make your work really less while performing repetitive tasks like minification, compilation, unit testing, linting, etc with just few lines of code you need to write in command prompt.

Gruntjs
Grunt is a task-based command line build tool for JavaScript projects.
If you have a Javascript and html based project that used MVVM model and you have millions of lines of code to minimize then grunt is the key for you.

Some of the plugins Grunt can enjoy.


Some of the big IT companies that uses grunt..


and Below is the starter guide provided by grunt official website to keep you jump started.
have fun in grunting. 





Getting started:

Grunt and Grunt plugins are installed and managed via npm, the Node.js package manager.
Grunt 0.4.x requires Node.js version >= 0.8.0.

Installing the CLI

In order to get started, you'll want to install Grunt's command line interface (CLI) globally. You may need to use sudo (for OSX, *nix, BSD etc) or run your command shell as Administrator (for Windows) to do this.
npm install -g grunt-cli
This will put the grunt command in your system path, allowing it to be run from any directory.
Note that installing grunt-cli does not install the Grunt task runner! The job of the Grunt CLI is simple: run the version of Grunt which has been installed next to a Gruntfile. This allows multiple versions of Grunt to be installed on the same machine simultaneously.

How the CLI works


Each time grunt is run, it looks for a locally installed Grunt using node's require() system. Because of this, you can run grunt from any subfolder in your project.
If a locally installed Grunt is found, the CLI loads the local installation of the Grunt library, applies the configuration from your Gruntfile, and executes any tasks you've requested for it to run.
To really understand what is happening, read the code. It's very short.

Further reading can be dine in at 






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