"Encountered an error: AngularJS is unable to read the property 'push' as it is

I'm attempting to generate an array using data retrieved from an API. However, I continue to encounter an error message stating

cannot read property 'push' of undefined in Javascript
.

Could someone please guide me on how to resolve this issue?

Below is the snippet of code in question:

 myService.getData().then(function (res) {
            $scope.resoureceGroupsRawData = res.data;
            //array already declared...
            $scope.resourceGroupItems = new Array();

        }, function(error) {
           throw error;
        }).then(function() {
            _.forEach($scope.resoureceGroupsRawData, function(text, idx) {
                var item = {};
                item.id = idx++;
                item.label = text;
                //why does it say resourceGroupItems is null?
                $scope.resouceGroupItems.push(item);
            });
        }, function(err) {

        });

Answer №1

Oops, some typos here, you misspelled "resource" in a few places.

myService.getData().then(function (res) {
            $scope.resourceGroupsRawData = res.data;
            //declaring an array beforehand...
            $scope.resourceGroupItems = new Array();

        }, function(error) {
           throw error;
        }).then(function() {
            _.forEach($scope.resourceGroupsRawData, function(text, idx) {
                var item = {};
                item.id = idx++;
                item.label = text;
                //why does it show that resourceGroupItems is null?
                $scope.resourceGroupItems.push(item);
            });
        }, function(err) {
            //TODO: add error page here
        });

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