I have an array of strings, and I want each of the strings to be bound to an input.
However, editing the input doesn't seem to update the array (isolated scope issues maybe?).
Suggestions?
function Ctrl($scope) {
  $scope.fruits = ['Apple', 'Mango', 'Banana', 'Strawberry'];
}
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app>
  <div ng-controller="Ctrl">
    <div style="margin: 20px 0" ng-repeat="fruit in fruits">
      <input type="text" ng-model="fruit" />
    </div>
    Fruits: {{fruits}}
  </div>
</div>
You need the array reference which you can get from $index. Note however that this won't work if any filtering is done on the ng-repeat as the indexing then is based on filtered array not the original
<div style="margin: 20px 0" ng-repeat="fruit in fruits track by $index">
      <input type="text" ng-model="fruits[$index]" />
</div>
DEMO
Ok, so it seems to me like a case of
'ng-model requires a dot in the model name to work correctly with the scope, otherwise it would create a local scope'
What i would suggest is to change your data structure from plain strings to objects containing the strings as a property, something like :
 $scope.fruits = [
    {'title':'Apple'},
    {'title':'Mango'},
    {'title':'Banana'},
    {'title':'Strawberry'},
    ];
Now, when you bind it to ng-model like this
<div style="margin: 20px 0" ng-repeat="fruit in fruits">
      <input type="text" ng-model="fruit.title" />
</div>
then it will not create any local/child scope, instead it would be able to bind to the title property on the items in the fruits array.
example fiddle: http://jsfiddle.net/HB7LU/24008/
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