AngularJS Starter

HTML

<div ng-app="app">
    <div ng-controller="ctrl">
        {{number}}
        <br><button ng-click="increment()">Increment</button>
    </div>
    
    <br>
    <br>
    
    <div ng-controller="ctrl2">
        {{number || 0}} 
    </div>
</div>

JavaScript

angular.module("app", [])
.controller("ctrl", ["$scope", function($scope){
    $scope.number = 1;
    $scope.increment = function(){
    	$scope.number++;
    }
}])

.controller("ctrl2", ["$scope", function($scope){
    
}]);