I am new in angularjs and I cant figure out some stuff please help I want to rep

Question

I am new in angularjs and I cant figure out some stuff please help

I want to replace this line of code :

<div class="intro {{ (activeQuestion > -1) ? 'inactive' : 'active' }}">

inestesd of using this (if else) in index.html  I want to use it in app.js

Also, is there any way to replace isSelected($parent.$index , $index) in the following code:

I do not want use ($parent.$index , $index)

<p class="txt">{{myQuestion.question}}</p>
<p class="ans"
ng-class="{
image:Answer.image,
selected:isSelected($parent.$index , $index)}

here is app.js:

$scope.isSelected = function(qIndex, aIndex){
return $scope.myQuestions[qIndex].selectedAnswer === aIndex;
}

Explanation / Answer

Write like this in app.js file

$scope.isSelected = function(qIndex, aIndex){

var index = $scope.myQuestions.indexof(myQuestion);

$scope.selected.index = $scope.myQuestions[index];

return $scope.myQuestions.index;

}

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