Parsing AngularJS scope and using sample code
Scope plays its View ConnectionController The role of a special JavaScript object. The scope contains the model data. In the controller, the model data is passed through $scope. Object access.
<script>
var mainApp = angular.module("mainApp", []);
mainApp.controller("shapeController", function($scope) {
$scope.message = "In shape controller";
$scope.type = "Shape";
});
</script>
The following are important issues to consider in the above example
$scope is used as the first parameter in its constructor to determine the pointer. Controller.
$scope.message and $scope.type are the models they are used in the HTML page.
The values of the model we have set will be reflected in the application module's controller shapeController. .
We can define functions in $scope
##Inherit scope##The scope is. Specific controller. If we define nested controllers, then the controller child will inherit the scope of its parent control.
<script>
var mainApp = angular.module("mainApp", []);
mainApp.controller("shapeController", function($scope) {
$scope.message = "In shape controller";
$scope.type = "Shape";
});
mainApp.controller("circleController", function($scope) {
$scope.message = "In circle controller";
});
</script>The following are important to consider in the above example. Question.
We set the value of the model in shapeController.
The sub-controller circleController message we override will be used when the module of the controller circleController is used. Message written.
Example
The following example will demonstrate all the above directives.
<html>
<head>
<title>Angular JS Forms</title>
</head>
<body>
<h2>AngularJS Sample Application</h2>
<p ng-app="mainApp" ng-controller="shapeController">
<p>{{message}} <br/> {{type}} </p>
<p ng-controller="circleController">
<p>{{message}} <br/> {{type}} </p>
</p>
<p ng-controller="squareController">
<p>{{message}} <br/> {{type}} </p>
</p>
</p>
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.2.15/angular.min.js"></script>
<script>
var mainApp = angular.module("mainApp", []);
mainApp.controller("shapeController", function($scope) {
$scope.message = "In shape controller";
$scope.type = "Shape";
});
mainApp.controller("circleController", function($scope) {
$scope.message = "In circle controller";
});
mainApp.controller("squareController", function($scope) {
$scope.message = "In square controller";
$scope.type = "Square";
});
</script>
</body>
</html>Result
Open textAngularJS.html in the web browser. See the following result.
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