An AngularJS filter mimicking C#'s string.Format()

<!DOCTYPE html>
<html>

  <head>
    <script src="https://code.angularjs.org/1.5.8/angular.js" data-require="angular.js@1.5.8" data-semver="1.5.8"></script>
    <link href="style.css" rel="stylesheet" />
    <script src="script.js"></script>
  </head>

  <body ng-app="App">
    <h1>C# string.Format() AngularJS filter</h1>
    <div ng-controller="MainController">
      {{'{0} my name is {1}'|textfilter:'Hey':Name}}
    </div>
  </body>

</html>

// Code goes here

var app = angular.module('App', []);

app.controller('MainController', function($scope) {
  $scope.Name = "Ryan Southgate";
});

app.filter('textfilter', [function() {
  return function (input) {
    if (arguments.length > 1) {
      // If we have more than one argument (insertion values have been given)
      var str = input;
      // Loop through the values we have been given to insert
      for (var i = 1; i < arguments.length; i++) {
        // Compile a new Regular expression looking for {0}, {1} etc in the input string
        var reg = new RegExp("\\{" + (i-1) + "\\}");
        // Perform the replace with the compiled RegEx and the value
        str = str.replace(reg, arguments[i]);
      }
      return str;
    }
    
    return input;
  };
}]);