我有这些文件:
index.html:
<!DOCTYPE html>
<html>
<head>
<title>Gestore Anagrafica</title>
</head>
<body>
<div>
<h3>Insert new person</h3>
<div ng-app="Person" ng-controller="PersonController">
First Name: <input type="text" ng-model="firstName"><br>
Last Name: <input type="text" ng-model="lastName"><br>
Age: <input type="number" ng-model="age"><br>
<br>
Full Name: {{fullName()}} <br>
Is major: {{isMajor()}} <br>
<button ng-click="add()">Add Person</button>
</div>
</div>
<script type="text/javascript" src="js/angular.js"></script>
<script type="text/javascript" src="js/RegistryService.js"></script>
<script type="text/javascript" src="js/PersonController.js"></script>
</body>
</html>
js / RegistryService.js:
angular.module('RegistryService', []).
service('registry', function()
{
this.people = [];
this.add = function(person)
{
people.push(person);
}
});
js / PersonController.js:
var app = angular.module('Person', ['RegistryService']);
app.controller('PersonController',['registry', function($scope, registry) {
$scope.firstName = "testName";
$scope.lastName = "";
$scope.age = 20;
$scope.isMajor = function()
{
return $scope.age > 18;
};
$scope.add = function()
{
registry.add({ 'firstName': $scope.firstName,
'lastName': $scope.lastName,
'age': $scope.age});
};
$scope.fullName = function()
{
return $scope.firstName + " " + $scope.lastName;
};
}]);
绑定不会发生:当我更改名称或年龄时,什么也没有发生,此外,在开始时输入均为空白,但我希望看到20岁,而firstName中的testName。浏览器的控制台未显示任何错误。我想念什么吗?
约束:服务“ RegistryService”必须位于另一个文件中。
题:
这两行
var app = angular.module('Person', ['RegistryService']);
app.controller('PersonController',['registry', function($scope, registry) {
我告诉名为Person的模块需要一个名为RegistryService的东西才能工作,控制器PersonController将使用位于RegistryService中的“注册表”东西(因此,如果我在此处放入未定义到RegistryService中的东西,则会出现错误)。 function($ scope,Registry)是使用全局变量$ scope和变量注册表的控制器的构造函数,该变量注册表取自'RegistryService'。我对依赖项注入的整体理解是否很好?
最佳答案
您还需要描述$scope
注入,因为您希望它在控制器功能中作为第一个参数可用:
var app = angular.module('Person', ['RegistryService']);
app.controller('PersonController', ['$scope', 'registry', function($scope, registry) { }]);