AngularJs:使用 ng-model 时输入值也会发生变化。我也尝试过 ng-value 和 ng-bind

AngularJs: Input value changes in display too using ng-model. I have tried ng-value and ng-bind too

 <div class="form-group">
                        Name <input type="text" class="form-control" placeholder="item" ng-model="shoppingItem.itemName" required>
                    </div>
                    <div class="form-group">
                        Image URL <input type="url" class="form-control" placeholder="item" ng-model="shoppingItem.imgUrl" required>
                    </div>
                    <div class="form-group">
                        <button type="button" class="btn btn-success" ng-click="save()" >Success</button>
                    </div>

app.controller('recipebookController',function($scope,$routeParams,RecipeService,$location){
    $scope.shoppingItems =RecipeService.shoppingItems;
    $scope.rp="Route parameter value"+RecipeService.shoppingItems[0].itemName;
    
    $scope.save = function(){
        RecipeService.save($scope.shoppingItem);
        $location.path("/");
    }
});

<div class="col-xs-12">
    <ul class="list-group">
         <li ng-repeat="item in shoppingItems"class="list-group-item text-center clearfix">
            <span style="font-weight:bold">{{item.itemName}}</span>
            <img ng-src="{{ item.imgUrl }}" width="40" height="40"/>`
         </li>
    </ul>
</div>

当我输入保存时,新数据完美地按行保存并显示,但是当我在输入中重新输入新值时。之前保存的值在我输入时发生变化。

您面临的问题是,当您调用 RecipeService.save($scope.shoppingItem); 时,RecipeService 将 reference 保存到您的范围变量。

因此,我可能会尝试这样做,而不是直接分配变量:

RecipeService.save(angular.copy($scope.shoppingItem));

这将创建 $scope.shoppingItem 引用的对象的新副本,并允许您编辑其中一个对象而不影响另一个。