中的
这是一个AngularJS继承代码,其中继承在功能中,但此代码没有输出。
CustDetails和EmppayCheck是应用继承的两个功能,但代码有一些错误,我找不到。
<html lang="">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Controller Inheritance</title>
<script src="angulaar.min.js"></script>
<script>
var app = angular.module("sample",
[]).run(["$rootScope",function($rootScope){
$rootScope.taxPe`enter code here`rcent = 30;
}]);
app.controller("custDetails", ["$scope",function($scope) {
$scope.Name = "Dipanshu";
$scope.Sal = 45000;
$scope.Dept = "Testing";
}]);
app.controller("empPayCheck", ["$scope", "$rootScope",
function($scope, $rootScope) {
$scope.getTaxes = function() {
return $scope.Sal * $rootScope.taxPercent / 100;
};
$scope.getNet = function() {
return $scope.Sal - $scope.getTaxes();
};
}]);
</script>
</head>
<body ng-app="sample">
<div ng-controller="custDetails">
Employee Details of {{Name}}
<div ng-controller="custDetails">
{{Name}} earns {{Sal}} rs and is in <strong>{{Dept}}</strong>
Department.
<div controller="empPayCheck">
Tax: {{getTaxes()}}
<br> Net Amount: {{getNet()}}
</div>
</div>
</div>
</body>
</html>
您应该使用 $scope.$parent
访问子控制器中的父 $scope
变量。同样在您的HTML代码中,有一个错字,其中controller
应为ng-controller
。
查看以下工作示例。
var app = angular.module("sample", []).run(["$rootScope", function($rootScope) {
$rootScope.taxPercent = 30;
}]);
app.controller("custDetails", ["$scope", function($scope) {
$scope.Name = "Dipanshu";
$scope.Sal = 45000;
$scope.Dept = "Testing";
}]);
app.controller("empPayCheck", ["$scope", "$rootScope",
function($scope, $rootScope) {
$scope.getTaxes = function() {
return $scope.$parent.Sal * $rootScope.taxPercent / 100;
};
$scope.getNet = function() {
return $scope.$parent.Sal - $scope.getTaxes();
};
}
]);
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<body ng-app="sample">
<div ng-controller="custDetails">
Employee Details of {{Name}}
<div>
{{Name}} earns {{Sal}} rs and is in <strong>{{Dept}}</strong> Department.
<div ng-controller="empPayCheck">
Tax: {{getTaxes()}}
<br> Net Amount: {{getNet()}}
</div>
</div>
</div>
</body>
-
module
运行块靠近$rootScope.taxPe
; - 您使用的是
controller
属性而不是ng-controller
。
这是一个工作代码段:
var app = angular.module("sample", []).run(["$rootScope", function($rootScope) {
$rootScope.taxPercent = 30;
}]);
app.controller("custDetails", ["$scope", function($scope) {
$scope.Name = "Dipanshu";
$scope.Sal = 45000;
$scope.Dept = "Testing";
}]);
app.controller("empPayCheck", ["$scope", "$rootScope",
function($scope, $rootScope) {
$scope.getTaxes = function() {
return $scope.Sal * $rootScope.taxPercent / 100;
};
$scope.getNet = function() {
return $scope.Sal - $scope.getTaxes();
};
}
]);
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<body ng-app="sample">
<div ng-controller="custDetails">
Employee Details of {{Name}}
<div ng-controller="custDetails">
{{Name}} earns {{Sal}} rs and is in <strong>{{Dept}}</strong> Department.
<div ng-controller="empPayCheck">
Tax: {{getTaxes()}}
<br> Net Amount: {{getNet()}}
</div>
</div>
</div>
</body>
P.S。:我个人不建议使用$rootScope
和范围继承,您可以使用服务在控制器之间共享数据。还建议您查看v1.5 。
component
API