格式化input输入内容（金额）

项目中要用到格式化金额输入框，要求每三个数字用逗号分割开。

添加一个directive

 angular.module('myApp.directives', [])
 .directive('filterInput',['$filter', function ($filter){
             return {
                 restrict: 'A',
                 require: 'ngModel',
                 link: function(scope, element, attr, ngModel) {

                     ngModel.$parsers.push(function fromUser(text) {
                         return parseInt(text.replace(",",""));
                     });

                     ngModel.$formatters.push(function toUser(text) {
                         console.log($filter('number')(text));
                         return ($filter('number')(text || ''));
                     });

                 }
             };
         }]);

http://stackoverflow.com/questions/19890364/format-input-value-in-angularjs