详解Angularjs filter

1，uppercase，lowercase大小转换
{{ "lower cap string" | uppercase }} //结果：LOWER CAP STRING
{{ "TANK is GOOD" | lowercase }} //结果：tank is good
｜这里的竖线是一种管道功能，如果对linux比较熟悉的话，这块的｜根linux的管道功能，基本是一样的

2，json格式化
{{ {foo: "bar", baz: 23} | json }} //结果：{ "foo": "bar", "baz": 23 }
注意：bza没格式前是没有双引号的，格式化后就转换成了json数据了。

3，date格式化
{{ 1304375948024 | date }} //结果：May 3, 2011
{{ 1304375948024 | date:"MM/dd/yyyy @ h:mma" }} //结果：05/03/2011 @ 6:39AM
{{ 1304375948024 | date:"yyyy-MM-dd hh:mm:ss" }} //结果：2011-05-03 06:39:08

4，number格式化
{{ 1.234567 | number:1 }} //结果：1.2
{{ 1234567 | number }} //结果：1,234,567

5，currency货币格式化
{{ 250 | currency }} //结果：$250.00
{{ 250 | currency:"RMB ￥ " }} //结果：RMB ￥ 250.00

6，filter查找
{{ [{"age": 20,"id": 10,"name": "iphone"},
{"age": 12,"id": 11,"name": "sunm xing"},
{"age": 44,"id": 12,"name": "test abc"}
] | filter:'s'}} //查找含有有s的行

//上例结果：[{"age":12,"id":11,"name":"sunm xing"},{"age":44,"id":12,"name":"test abc"}]

{{ [{"age": 20,"id": 10,"name": "iphone"},
{"age": 12,"id": 11,"name": "sunm xing"},
{"age": 44,"id": 12,"name": "test abc"}
] | filter:{'name':'iphone'} }} //查找name为iphone的行

//上例结果:[{"age":20,"id":10,"name":"iphone"}]

7，limitTo字符串，对像的截取
{{ "i love tank" | limitTo:6 }} //结果：i love
{{ "i love tank" | limitTo:-4 }} //结果：tank

{{ [{"age": 20,"id": 10,"name": "iphone"},
{"age": 12,"id": 11,"name": "sunm xing"},
{"age": 44,"id": 12,"name": "test abc"}
] | limitTo:1 }} //结果：[{"age":20,"id":10,"name":"iphone"}]

8，orderBy对像排序
{{ [{"age": 20,"id": 10,"name": "iphone"},
{"age": 12,"id": 11,"name": "sunm xing"},
{"age": 44,"id": 12,"name": "test abc"}
] | orderBy:'id':true }} //根id降序排

{{ [{"age": 20,"id": 10,"name": "iphone"},
{"age": 12,"id": 11,"name": "sunm xing"},
{"age": 44,"id": 12,"name": "test abc"}
] | orderBy:'id' }} //根据id升序排

二，自定filter功能
我找了一个基本angularjs的mvc框架，phonecat，自定义filter也是在这基础写的，这个框架挺好用的。
1，filters.js添加一个module
angular.module('tanktest', []).filter('tankreplace', function() {
return function(input) {
return input.replace(/tank/, "=====")
};
});

2，app.js中加载这个module
var phonecatApp = angular.module('phonecatApp', [
'ngRoute',
'phonecatControllers',
'facebookControllers',
'tanktest'
]);

3，html中调用
{{ "TANK is GOOD" | lowercase |tankreplace}} //结果：===== is good

原文链接：
http://blog.51yip.com/jsjquery/1592.html