How do I get an input value into Angular's $scope?

The value will automatically be added to the $scope, but you have to type something into the input element.

That said, you need to trigger something to get this value. For example, where you have your comment // get the scope value here -- this is triggered as soon as the controller is initialized and never called again; so, it's going to log undefined at that time. However, if you set it to a button click, or something, you will see it's available:

<div ng-controller='ctrl'>   <input type='text' ng-model='id'>   <button ng-click="logId()">Log ID</button></div>

And your controller:

module.controller('ctrl',['$scope', function ($scope) {    $scope.logId = function() {        console.log($scope.id);    }}]);

Now type something into the input and click the button.

If you really need it in array, just do this in your controller:

$scope.data = [0];

and in HTML do<input type="text" ng-model="data[0]">

It will fill that array value automaticaly as you type something in INPUT, id will be always at first position in array.

Or you can handle it with objectIn controller:$scope.data = {};

in HTML <input type="text" ng-model="data.id">