ng-select用来将数据同HTML的<select>元素进行绑定。这个指令可以和ng-model以及ng-options指令一同使用,构建精细且表现优良的动态表单。
ng-options的值可以是一个内涵表达式(comprehension expression),其实这只是一种有趣的说法,简单来说就是它可以接受一个数组或对象,并对它们进行循环,将内部的内容提供给select标签内部的选项。它可以是下面两种形式。
<!doctype html>
<html ng-app="myApp">
<head>
<link rel="stylesheet" href="//cdn.jsdelivr.net/foundation/4.3.2/css/foundation.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.0-rc.2/angular.js"></script>
</head>
<body>
<div ng-controller="CityController">
<select ng-model="city" ng-options="city.name for city in cities">
<option value="">Choose City</option>
</select>
Best City: {{ city.name }}
</div>
</body>
</html>
angular.module('myApp', [])
.controller('CityController', function($scope) {
$scope.cities = [
{name: 'Seattle'},
{name: 'San Francisco'},
{name: 'Chicago'},
{name: 'New York'},
{name: 'Boston'}
];
});