What is “typescript” Package?

Language for application scale JavaScript development
For more details: http://typescriptlang.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 typescript.

  brew install typescript

Now, use typescript!