ng-model抛出角度为1.3的输入类型编号的错误

时间:2015-03-01 02:10:59

标签: javascript angularjs html5 angular-ngmodel

我有一个输入字段,我希望用户输入一个数字,所以我创建了一个输入字段,类型为" number"。

当我在1.2中使用它时,我没有错误

    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.27/angular.min.js"></script>
    <script>
          var app = angular.module('app', []);
            app.controller('MainCtrl', ['$scope', function ($scope) {
                $scope.person = [
                {"name": "Alex","pts": "10"}
            ];
            }]);
    </script>
        <div ng-app="app">
                <div ng-controller="MainCtrl">
                  {{person | json }}<br>
                  name: <span ng-bind="person[0].name"></span></br>
                  <!-- pts: <input ng-model="person[0].pts"> -->
                  pts: <input type="number" ng-model="person[0].pts"><br?
            </div>
        </div>

http://codepen.io/anon/pen/dPKgVL

然而,当我在1.3中使用它时,我得到错误:[ngModel:numfmt]但是当我更新数字时,它似乎仍然被绑定到范围。

    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.14/angular.min.js"></script>
    <script>
          var app = angular.module('app', []);
            app.controller('MainCtrl', ['$scope', function ($scope) {
                $scope.person = [
                {"name": "Alex","pts": "10"}
            ];
            }]);
    </script>
        <div ng-app="app">
                <div ng-controller="MainCtrl">
                {{person | json }}<br>
                  name: <span ng-bind="person[0].name">
                  name: <span ng-bind="person[0].name"></span></br>
                  <!-- pts: <input ng-model="person[0].pts"> -->
                  pts: <input type="number" ng-model="person[0].pts">
            </div>
        </div>

http://codepen.io/anon/pen/YPvJro

我在这里做错了什么或者这没什么好担心的?当我尝试调试其他问题时,我宁愿不在控制台中出现错误

6 个答案:

答案 0 :(得分:19)

添加此项以解决问题:

myApp.directive('input', [function() {
    return {
        restrict: 'E',
        require: '?ngModel',
        link: function(scope, element, attrs, ngModel) {
            if (
                   'undefined' !== typeof attrs.type
                && 'number' === attrs.type
                && ngModel
            ) {
                ngModel.$formatters.push(function(modelValue) {
                    return Number(modelValue);
                });

                ngModel.$parsers.push(function(viewValue) {
                    return Number(viewValue);
                });
            }
        }
    }
}]);

答案 1 :(得分:11)

pts属性定义为number而不是string

var app = angular.module('app', []);
app.controller('MainCtrl', ['$scope', function ($scope) {
    $scope.person = [
        {"name": "Alex","pts": 10}
    ];
}]);

答案 2 :(得分:8)

该指令将解析任何类型为&#39; number&#39;的输入的字符串值。然后你就不会有任何错误:

module.directive('input', function(){
    return {
        require: 'ngModel',
        link: function(scope, elem, attrs, ngModel){
            if(attrs.type == 'number'){
                ngModel.$formatters.push(function(value){
                    return parseFloat(value);
                });
            }
        }
    };
});

答案 3 :(得分:2)

删除&#34; 10&#34;周围的引号。 Angular期待一个数字,你给它一个字符串。

答案 4 :(得分:2)

Easy解决方案错误“numfmt的AngularJS文档”解析Int或Float中的类型; - )

<input type="number" ng-model="inputNumDemo" />

....
    app.controller('Demo',[ '$scope', function($scope){

      // Input numeric convert String "10" to Int 10 or Float
      $scope.f.inputNumDemo = parseInt(d.data.inputDemo );

    }]);
....

答案 5 :(得分:0)

您好只需在app.js

中添加此代码即可
angular.module('numfmt-error-module', [])

.run(function($rootScope) {
  $rootScope.typeOf = function(value) {
    return typeof value;
  };
})

.directive('stringToNumber', function() {
  return {
    require: 'ngModel',
    link: function(scope, element, attrs, ngModel) {
      ngModel.$parsers.push(function(value) {
        return '' + value;
      });
      ngModel.$formatters.push(function(value) {
        return parseFloat(value);
      });
    }
  };
});