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I'm trying to bind id in my controller

 obj1["id"] = $scope.editableCourse.Modules[i].id; obj["id"] = $scope.editableCourse.Modules[i].Resourses[j].id;

but in run time, got an

error: "Cannot set property 'id' of undefined".

How can I initialize "id" in my controller for the above cases.

Anyone suggest me a solution.

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  • Either the modules or the resources is undefined. You need to find out why. Commented Oct 21, 2016 at 8:52
  • The id is not the problem, the undefined object or controller is the problem. Commented Oct 21, 2016 at 8:54
  • You need to initialise the varibales $scope.editableCourse,obj1,obj etc. Commented Oct 21, 2016 at 8:58
  • Your obj1 or obj is undefined therefor you can't set property on it. Depending on your case you could do var obj = {} to fix this Commented Oct 21, 2016 at 8:59
  • my question is how to declare $scope.editableCourse.Modules[i].id in controller rest of the all declarations are perfect. Commented Oct 21, 2016 at 10:44

1 Answer 1

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You should use var obj={}; and var obj1={};

Whenever an object is declared its default value will be null like var obj or simply obj will be considered as var obj=null or undefined; and you cannot set any property like id for this undefined object.

so your code should be 

 var obj = {}; var obj1 = {}; obj1["id"] = $scope.editableCourse.Modules[i].id; obj["id"] = $scope.editableCourse.Modules[i].Resourses[j].id;
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Give me a suggestion how to declare $scope.editableCourse.Modules[i].id this reference variable

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