Angular - 将范围值保存到变量,但在范围更新时不更新它

Question

我有这样的事情:

$scope.last_good_configuration = $scope.storage;

在$ scope.last_good_configuration中我保留了最后的好设置.

当用户输入输入的坏值时,例如我想做的大整数:

$scope.storage = $scope.last_good_configuration;

但我的$ scope.last_good_configuration始终与$ scope.storage相同.如何停止更新$ scope.last_good_configuration？我必须以某种方式评估我的范围？

Answer 1

您需要复制或克隆原始对象.Angular有一个内置的方法:angular.copy.

$scope.last_good_configuration = angular.copy($scope.storage);


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