freeCodeCamp/public/js/main.js

$(document).ready(function() {

  var CSRF_HEADER = 'X-CSRF-Token';

  var setCSRFToken = function(securityToken) {
    jQuery.ajaxPrefilter(function(options, _, xhr) {
      if (!xhr.crossDomain) {
        xhr.setRequestHeader(CSRF_HEADER, securityToken);
      }
    });
  };

  setCSRFToken($('meta[name="csrf-token"]').attr('content'));

  $('.start-challenge').on('click', function() {
      $(this).parent().remove();
      $('.challenge-content')
        .removeClass('hidden-element')
        .addClass('animated fadeInDown');
  });

  $('.completed-challenge').on('click', function() {
      $('#complete-dialog').modal('show');

      l = location.pathname.split('/');
      cn = l[l.length - 1];
      console.log(cn);
      $.ajax({
          type: 'POST',
          data: {challengeNumber: cn},
          url: '/completed_challenge/'
      });
  });

  $('.skip-challenge').on('click', function() {
      $('#skip-dialog').modal('show');
  });

  $('.next-button').on('click', function() {
      l = location.pathname.split('/');
      window.location = '/challenges/' + (parseInt(l[l.length - 1]) + 1);
  });
});

var profileValidation = angular.module('profileValidation',[]);
profileValidation.controller('profileValidationController', ['$scope',
    function($scope) {
        $scope.twitterHandle = '@yournamehere';
        $scope.user.name = req.user.name;
    }
]);