发布于 2017-03-16 00:54:36 | 101 次阅读 | 评论: 0 | 来源: 网友投递
AngularJS 前端JS框架
AngularJS诞生于Google是一款优秀的前端JS框架，已经被用于Google的多款产品当中。AngularJS有着诸多特性，最为核心的是：MVC、模块化、自动化双向数据绑定、语义化标签、依赖注入，等等。
AngularJS ng-repeat 指令
AngularJS 实例
循环输出多个标题:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="http://apps.bdimg.com/libs/angular.js/1.4.6/angular.min.js"></script>
</head>
<body ng-app="myApp" ng-controller="myCtrl">
<h1 ng-repeat="x in records">{{x}}</h1>
<script>
var app = angular.module("myApp", []);
app.controller("myCtrl", function($scope) {
$scope.records = [
"菜鸟教程1",
"菜鸟教程2",
"菜鸟教程3",
"菜鸟教程4",
]
});
</script>
</body>
</html>
定义和用法
ng-repeat 指令用于循环输出指定次数的 HTML 元素。
集合必须是数组或对象。
语法
<element ng-repeat="expression"></element>
所有的 HTML 元素都支持该指令。
参数值
| 值 | 描述 |
|---|---|
| expression | 表达式定义了如何循环集合。 表达式实例规则: x in records (key, value) in myObj x in records track by $id(x) |
更多实例
AngularJS 实例
使用数组循环输出一个表格:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="http://apps.bdimg.com/libs/angular.js/1.4.6/angular.min.js"></script>
</head>
<body ng-app="myApp">
<table ng-controller="myCtrl" border="1">
<tr ng-repeat="x in records">
<td>{{x.Name}}</td>
<td>{{x.Country}}</td>
</tr>
</table>
<script>
var app = angular.module("myApp", []);
app.controller("myCtrl", function($scope) {
$scope.records = [
{
"Name" : "Alfreds Futterkiste",
"Country" : "Germany"
},
{
"Name" : "Berglunds snabbk",
"Country" : "Sweden"
},
{
"Name" : "Centro comercial Moctezuma",
"Country" : "Mexico"
},
{
"Name" : "Ernst Handel",
"Country" : "Austria"
}
]
});
</script>
</body>
</html>
运行结果：
| Alfreds Futterkiste | Germany |
| Berglunds snabbk | Sweden |
| Centro comercial Moctezuma | Mexico |
| Ernst Handel | Austria |
AngularJS 实例
使用对象循环输出一个表格:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="http://apps.bdimg.com/libs/angular.js/1.4.6/angular.min.js"></script>
</head>
<body ng-app="myApp">
<table ng-controller="myCtrl" border="1">
<tr ng-repeat="(x, y) in myObj">
<td>{{x}}</td>
<td>{{y}}</td>
</tr>
</table>
<script>
var app = angular.module("myApp", []);
app.controller("myCtrl", function($scope) {
$scope.myObj = {
"Name" : "Alfreds Futterkiste",
"Country" : "Germany",
"City" : "Berlin"
}
});
</script>
</body>
</html>
运行结果：
| Name | Alfreds Futterkiste |
| Country | Germany |
| City | Berlin |
以上就是对AngularJS ng-repeat 指令的基础资料整理，后续继续补充。