如：{{1+2}}
过滤器就是用来过滤变量值，支持链式的写法如下：
{{ expression | filterName : parameter1 : ...parameterN }}
currency,date,filter,json,limitTo,lowercase,number,orderBy,uppercase
{{ 12.0 | currency:"USD$" }}
{{12.9 | currency | number:0 }}
{{ 1304375948024 | date }}
{{ 1304375948024 | date:"MM/dd/yyyy @ h:mma" }}
{{ "lower cap string" | uppercase }}
{{ {foo: "bar", baz: 23} | json }}
ng-repeat="phone in phones | filter:query | orderBy:orderProp"
filter xxx, 可以根据网页中输入的xxx值进行过滤和， 增强了页面的交互效果
orderBy 过滤 器以一个数组作为输入,复制一份副本,然后把副本重排序再输出到迭代器
只需要通过app.filter定义需要的filter即可。
var app = angular.module(‘myapp‘, []);
app.filter(‘filter3‘,function(){
return function(items){
angular.forEach(items,function(item){
item = item + ‘!‘
});
return items;
}
});
以下用不同的方式匹配到ngBind指令
<span ng:bind="name"> angular <span ng_bind="name"> angular <span ng-bind="name"> angular <span data-ng-bind="name"> angular <span x-ng-bind="name"> angular
Angular内部提供的指令基本都能匹配属性名，标签名，注释，或者类名， 如：
<my-dir></my-dir> <span my-dir="exp"></span> <!-- directive: my-dir exp --> <span class="my-dir: exp;"></span>
//html
<div ng-controller="Ctrl">
<my-customer customer="naomi"></my-customer>
</div>
//js
var app = angular.module(‘testTpl‘, []);
app.controller(‘Ctrl‘, function($scope) {
$scope.naomi = { name: ‘Naomi‘, address: ‘1600 Amphitheatre‘ };
$scope.vojta = { name: ‘Vojta‘, address: ‘3456 Somewhere Else‘ };
});
app.directive(‘myCustomer‘, function() {
return {
transclude: true,
restrict: ‘ACE‘,
templateUrl: ‘my-customer.html‘,
scope: {
customer: ‘=‘
},
controller: function() {
return {
openApi: function() { console.log(‘api init‘); }
}
}
};
});
app.directive(‘myCustomer1‘, function() {
return {
transclude: true,
restrict: ‘ACE‘,
require: ‘^myCustomer‘,
templateUrl: ‘my-customer.html‘,
scope: {
customer: ‘=‘
},
link: function(scope, element, attrs, myCustomer) {
//因为使用了require， 会多增加一个参数myCustomer来调用myCustomer指令控制器开放的API
}
};
});
// my-customer.html
Name: {{customer.name}} Address: {{customer.address}}
<hr>
Name: {{vojta.name}} Address: {{vojta.address}}
require: ‘^‘前缀意味着指令在它的父元素上面搜索控制器, 默认会在自身的元素上面搜索指定的指令
参考
原文：http://www.cnblogs.com/mininice/p/3985836.html