AngularJS Example

HTML

<div ng-app="">
  <div ng-controller="Ctrl">
      
      WANTS:  {{val | number:2}} in "input" elelent<br>
    2 decimal in input:  <input  ng-model='val'> <br>
    2 decimal in input:  <input  type="number" step="0.01" ng-model='val'><br>
    2 decimal in input:  <input  ng-model='val' value="{{val |number:2}}"> <br>

  </div>
</div>

CSS

</style> <!-- Ugly Hack due to jsFiddle issue: http://goo.gl/BUfGZ --> 
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.0.6/angular.min.js"></script>
<style>
​.ng-invalid { border: 1px solid red; }​

JavaScript

function Ctrl($scope) {
  $scope.val = 1234.56789;
}