从$ http返回的AngularJS对象-如何获取键/值对

Question

In an AngularJS app, I have an object stored in data returned from $http that looks something like this:

[{"var1":"1","var2":"2","var3":"3"}]

I want to be able to get the value of "var2" .

I thought this would be easy:

$scope.myObj = data;

$scope.myVar = $scope.myObj.var2;  //$scope.myvar should "2"

Instead, $scope.myObj returns undefined

how can I access the value of var2?

Answer 1

It looks like in your case data is an array. And if it is always of size -1 array just do:

$scope.myObj = data[0]; //Add any necessary null checks

Modify your logic accordingly by looping through the array if it is of size > 1.

angular.isObject() returns true because array is also an object.

You can use angular.isArray(obj) before checking isObject to make sure you filter out arrays as is. If you get mixed data ie sometimes object, sometimes array of size-1 with the same object you could also do:- $scope.myObj = [].concat(data)[0] .