Retrieve keycode from ng-keyup / ng-keydown

<!DOCTYPE html>
<html ng-app="myApp">

  <head>
    <script src="http://code.angularjs.org/1.1.5/angular.js"></script>
    <script src="script.js"></script>
  </head>

  <body ng-controller="MyCtrl">
  
    Step Number: <input type="text" ng-model="stepNumber">

    <h1>With ngIf:</h1>
    <div ng-if="stepNumberWithin(['1', '2', '3'], stepNumber)">One, Two, Three</div>
    <div ng-if="stepNumberWithin(['4'], stepNumber)">Four</div>
    <div ng-if="stepNumberWithin(['5', '10'], stepNumber)">Five, Ten</div>
    
  </body>
</html>

var myApp = angular.module('myApp', [])

myApp.controller('MyCtrl', function($scope) {
  
  $scope.stepNumberWithin = function(arr, number){
    console.log(arr, number);
    return arr.indexOf(number) !== -1;
  }
  
});

{"label": "Resource A"}

{"label": "Resource B"}