demo.html:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>AngularJS</title>
<script src="angular.min.js"></script> <!-- Introduce AngularJS framework-->
</head>
<body ng-app="App">
<div ng-controller="DemoController">
</div>
<script>
var App = angular.module('App',[]);
// $log log service
App.controller("DemoController",['$scope','$log',function($scope,$log) {
$log.info('Normal information'); // See the log in the console in the browser
$log.warn('Warning message');
$log.error('error message');
$log.log('print information'); // equivalent to console.log();
$log.debug('Debug information');
}]);
</script>
</body>
</html>