IF the attribute data-start is significant because it is being used by some other 3rd party library, then you might consider simply using ng-init when you create this on the server:
<input data-ng-model="typeId" name="typeId" type="hidden" data-start="2"
ng-init='start = 2' />
This will essentially run any code you need, and doesn't involve you having to parse out data attributes from the DOM.
You could write a pretty trivial directive to pull in the value and publish using an expression. This will essentially accomplish the same thing, but is more difficult in my opinion:
angular.module('data-pluck', [])
.controller('fooController', function() {
this.name = 'Foo Controller';
})
.directive('pluckData', ['$parse',
function($parse) {
return {
restrict: 'A',
link: function(scope, elem, attrs) {
var expression = function() {};
expression.assign = function() {};
scope.$watch(attrs.placeData, function() {
expression = $parse(attrs.placeData);
});
scope.$watch(attrs.pluckData, function() {
expression.assign(scope, attrs[attrs.pluckData]);
});
}
};
}
]);
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app='data-pluck' ng-controller='fooController as ctrl'>
<h1>{{ctrl.name}}</h1>
<div data-my-val="I'm value one" pluck-data='myVal' place-data='ctrl.valueOne'>
<p>I'm a regular old <code><p></code> tag</p>
<input type='hidden' data-my-val="I'm the second value" pluck-data='myVal' place-data='ctrl.valueTwo' />
</div>
<h3>These Values Populated Dynamically</h3>
<ul>
<li>ctrl.valueOne = {{ctrl.valueOne}}</li>
<li>ctrl.valueTwo = {{ctrl.valueTwo}}</li>
</ul>
</div>
