小编Vol*_*unz的帖子

我正在创建一个有角度的应用程序，并且有带有复选框的项目。当用户单击复选框时，我会将选中的项目记录到对象中。该对象看起来像这样：

{1: false, 7: true, 8: true};

When a user clicks on the delete button I need to get only selected items ids.

So I need to filter objects by values and as a result, get an array of integers.

I tried the following code with the lodash library:

console.log(_.pick(this.selectedItems, _.identity));

return _.pick(this.selectedItems, function (value, key) {
        return value;
      });

But this returns an empty array.

What I need to get is an array [7,8]

What is wrong with my …