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javascript - angularjs教程代码调试

转载 作者:行者123 更新时间:2023-12-02 16:23:31 25 4
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我通过 Apress 书学习 AngularJS,我遇到了一些不起作用的代码,我尝试调试,但我的控制台没有给我任何错误或任何东西。也许有专家可以指导我解决问题,谢谢。

customFilters.js 文件

// Creating a custom filter
// arguments for the filter method is unique and a factory function that returns a filter function that does the actaul work
angular.module('customFilters',[]).filter('unique', function() {
return function(data, propertyname) {
if (angular.isArray(data) && angular.isString(propertyname)) {
var results = [];
var keys = {};
for (var i = 0; i < data.length; i++) {
var val = data[i][propertyname];
if (angular.isUndefined(keys[val])) {
keys[val] = true;
results.push(val);
}
}
return results;
} else {
return data;
}
}
});

sportsStore.js 文件

//declaring a dependency called customFilters that contains a unqiue filter
angular.module('sportsStore',['customFilters']);

// calling the angular.module method passing in sportsStore located in app.html
angular.module('sportsStore').controller('sportsStoreCtrl', function($scope) {
$scope.data = {
products: [
{name: "Product 1", description:"A product", category:"Category #1", price: 100},
{name: "Product 2", description:"A product", category:"Category #1", price: 110},
{name: "Product 3", description:"A product", category:"Category #2", price: 210},
{name: "Product 4", description:"A product", category:"Category #3", price: 202}
]
};
});

我的productListControllers.js 文件

angular.module('sportsStore').controller('productListCtrl', function($scope,$filter){
var selectedCategory = null;
$scope.selectedCategory = function(newCategory) {
selectedCategory = newCategory;
};
$scope.categoryFilterFn = function(product) {
return selectedCategory == null || product.category == selectedCategory;
};
});

app.html 文件

<!DOCTYPE html>
<!-- We are defining the sportStore module here in the html tag-->
<html ng-app="sportsStore">
<head>
<title>Sports Store</title>
<link href="bootstrap.min.css" rel="stylesheet" />
<link href="bootstrap-theme.min.css" rel="stylesheet" />
</head>
<!-- Applying ng-controller to the body tagg -->
<body ng-controller="sportsStoreCtrl">
<div class="navbar navbar-inverse">
<a class="navbar-brand" href="#">Sports Store</a>
</div>
<div class="panel panel-default row" ng-controller="productListCtrl">
<div class="col-xs-3">
<a class="btn btn-block btn-default btn-lg" ng-click="selectCategory()">Home</a>
<!-- generating the navigation elements here -->
<a class="btn btn-block btn-default btn-lg" ng-repeat="item in data.products |orderBy:'category'| unique:'category'" ng-click="selectCategory(item)">{{item}}</a>
</div>
<div class="col-xs-8">
<!-- ng-repeat generates elements for each object in an array -->
<!-- we also create a local variable called item -->
<div class="well" ng-repeat="item in data.products | filter:categoryFilterFn">
<h3>
<strong>{{item.name}}</strong>
<span class="pull-right label label-primary">{{item.price | currency}}</span>
</h3>
<span class="lead">{{item.description}}</span>
</div>
</div>
</div>




<script src="angular.js"></script>
<script src="controllers/sportsStore.js"></script>
<script src="filters/customFilters.js"></script>
<script src="controllers/productListControllers.js"></script>
</body>
</html>

最佳答案

您的 html 文件中有拼写错误。该函数是selectCategory而不是selectCategory。

关于javascript - angularjs教程代码调试,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/28892227/

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