AngularJS || operator
HTML
<body ng-app="TestApp" ng-controller="TestController">
<div>value: {{value}}</div>
</body>JavaScript
angular.module('TestApp', [])
.controller('TestController', function ($scope) {
$scope.a = 0;
$scope.b = 1;
$scope.c = 2;
$scope.value = '' || false || null || $scope.a || $scope.b || $scope.c;
});