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[英]how to display an array elements on different page using AngularJs in Ionic
[英]Display elements in scope in angularjs page
大家好,第一個問題在這里。 我正在學習angularjs,現在我陷入了“控制器和作用域”一章。 我正在嘗試通過對象數組搜索並顯示與查詢匹配的項目; 不幸的是,我的屏幕仍然空白。
這是我的代碼:
<!DOCTYPE html>
<html ng-app="">
<head>
<title>Search and print with Scope</title>
</head>
<body>
<div ng-controller="Controller">
<input type="search" ng-model="q" placeholder="CPU" />
<ul>
<li ng-repeat="proc in cpu | filter:q">
{{proc.house}} - {{proc.model}}
</li>
</ul>
</div>
<script src="angular.min.js"></script>
<script>
function Controller($scope)
$scope.cpu = [
{ house: 'Intel', model: 'I7' },
{ house: 'AMD', model: 'Ryzen' },
{ house: 'Qualcomm', modello: 'Snapdragon' }
];
</script>
</body>
</html>
怎么了?
編輯:對於那些可能會看這個問題的人,我的錯誤是兩次調用ng-app,一次在html標簽中,一次在body標簽中。
編輯:我又在這里; 我使用給定的答案修改了代碼,但仍然有一個搜索框和一個空白屏幕。 我懷疑代碼是否相關,因為我也嘗試將其簡單地復制並粘貼到新文件中,但結果卻相同。 可能是什么?
代碼在這里:
<!DOCTYPE html> <html ng-app=""> <head> <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script> <script> var app = angular.module('demoApp', []) app.controller('SimpleController', function($scope) { $scope.cpu = [{ house: 'Intel', model: 'I7' }, { house: 'AMD', model: 'Ryzen' }, { house: 'Qualcomm', model: 'Snapdragon' } ]; }); </script> <title>Search and print with Scope</title> </head> <body ng-app="demoApp"> <div ng-controller="SimpleController"> <input type="search" ng-model="q" placeholder="CPU" /> <ul> <li>hi</li> <li ng-repeat="proc in cpu"> {{proc.house}} - {{proc.model}} </li> <li>hi again</li> </ul> </div> </body> </html>
您需要有一個Angular模塊和ng-app,如下所示
DEMO
var app = angular.module('myApp',[]) app.controller('Controller',function($scope){ $scope.cpu = [ { house: 'Intel', model: 'I7' }, { house: 'AMD', model: 'Ryzen' }, { house: 'Qualcomm', modello: 'Snapdragon' } ]; });
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script> <html ng-app="myApp"> <head> <title>Search and print with Scope</title> </head> <body> <div ng-controller="Controller"> <input type="search" ng-model="q" placeholder="CPU" /> <ul> <li ng-repeat="proc in cpu | filter:q"> {{proc.house}} - {{proc.model}} </li> </ul> </div> </body> </html>
首先,您要先聲明作用域數據,然后再使用ng-repeat
加載腳本,然后將script
移至div定義之前。
另外,您沒有正確定義Controller,應該在app
模塊中定義Controller,然后將ng-app
和Controller
綁定到HTML中。
<!DOCTYPE html>
<html ng-app="">
<head>
<title>Search and print with Scope</title>
<script src="angular.min.js"></script>
<script>
var app = angular.module('angularApp',[])
app.controller('Controller',function($scope){
$scope.cpu = [
{ house: 'Intel', model: 'I7' },
{ house: 'AMD', model: 'Ryzen' },
{ house: 'Qualcomm', modello: 'Snapdragon' }
];
});
</script>
</head>
<body ng-app="angularApp">
<div ng-controller="Controller">
<input type="search" ng-model="q" placeholder="CPU" />
<ul>
<li ng-repeat="proc in cpu | filter:q">
{{proc.house}} - {{proc.model}}
</li>
</ul>
</div>
</body>
</html>
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