从$ scope变量中提取值？

Question

如何将常规javascript变量分配给角度$ scope变量的当前值而不绑定它们的值？

//$scope.var1 is initialized to some value, say 5
var v2 = $scope.var1;
//$scope.var1 is changed to 7

我希望v2仍然是5，而不是7。

Answer 1

var v2 = angular.copy($scope.var1);