What is “phantomjs” Package?

Headless WebKit scriptable with a JavaScript API
For more details: http://phantomjs.org/

Installation

• Open Terminal by pressing command+space then type terminal and hit Enter key.
• Install homebrew first.

  ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null

• Install phantomjs.

  brew install phantomjs

Now, use phantomjs!