The AngularJS error message: TypeError: Unable to access the 'images' property because it is undefined

Currently using AngularJS version 1.5.11

I am attempting to present images sourced from a JSON array.

Is my method correct:

$scope.mainImage = $scope.template.images[0].name;
. The issue arises at the line where it says it cannot read property of images.

This is my Controller in templates.js file:

.controller("TemplatesDetailsCtrl", ["$scope", "$routeParams", "$http", "$filter", function($scope, $routeParams, $http, $filter ){
    var templateId = $routeParams.templateID;
    $http.get("json/templates.json").success(function(data){
        $scope.template = $filter("filter")(data, function(d){
            return d.id == templateId;
        })[0];
        $scope.mainImage = $scope.template.images[0].name; //THIS IS LINE 30
    });
}]);

The objective is to show the first image from the array. Here is the relevant HTML code:

<img class="img-full" src="img/{{mainImage}}">

I have attempted multiple times without success and continue to encounter this error: https://i.sstatic.net/mdVVf.jpg

Your assistance would be greatly appreciated.

Answer №1

It appears that the 'template' object is not defined. Remember to check for undefined before accessing its properties :

if ($scope.template)
   $scope.mainImage = $scope.template.images[0].name; //THIS IS LINE 30

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