You have to install Laravel's Elixir(Version 3.0 or higher) and its dependencies first.

Install with Node.js

npm install elixir-typescript

A simple gulp-typescript wrapper ingredient for Laravel Elixir.

Add it to your Elixir-enhanced Gulpfile, like so:

var elixir = require('laravel-elixir');

// import the dependency
var elixirTypscript = require('elixir-typescript');

elixir(function(mix) {
  mix.typescript('app.js');
});

This will compile all *.ts files in your resources/assets/typescript/ folder and concat the compiled content into public/js/app.js.

If you'd like to output to a different directory than the default public/js, then you may override this as well.

mix.typescript('app.js', 'public/js/foo/bar');