小编cod*_*sky的帖子

我有一个非常大的应用程序,有很多下拉菜单.我不想修改我的数据以添加空白选项,我不希望占位符可选.什么是最好的方法？

尝试从角度表达式中读取mongo _id字段时:

<tr ng-repeat="person in people">
  <td>{{person._id}}</td>
  <td>{{person.name}}</td>
  <td>{{person.location}}</td>
  <td>{{person.active}}</td>
</tr>

抛出以下错误:

"Referencing private fields in Angular expressions is disallowed"

plunker链接:http://plnkr.co/edit/dgHNP2rVGPwAltXWklL5

编辑:

此更改已在Angular 1.2.1中恢复:https://github.com/angular/angular.js/commit/4ab16aaaf762e9038803da1f967ac8cb6650727d

我正在使用angular.extend将较小的对象合并为更大的对象.

这是一个数据样本:

$scope.bigDocument = {
    "id": 0,
    "guid": "e75ce3b3-68f6-423f-94d8-1a613cde0c59",
    "isActive": true,
    "balance": "$2,437.00",
    "picture": "http://placehold.it/32x32",
    "age": 38,
    "name": "Parks Williamson",
    "gender": "male",
    "company": "Arctiq",
    "email": "parkswilliamson@arctiq.com",
    "phone": "+1 (817) 488-3119",
    "address": "252 Concord Street, Morgandale, Arizona, 1866",
    "about": "Irure nostrud nisi qui do amet nisi adipisicing dolor eiusmod do non laboris.",
    "registered": "1995-04-08T20:16:47 +05:00",
    "latitude": -6.796341,
    "longitude": 40.321499,
    "randomArrayItem": "cherry"
}

$scope.littleDocument = {
     "balance": "$3,193.00",
     "picture": "http://placehold.it/32x32",
     "age": 22, 
     "name": "Coffey Wilcox",
     "gender": "male",
     "company": "Balooba",
     "email": "coffeywilcox@balooba.com",
     "phone": …