angularjs filter 详解
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一,内置的过滤器
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,son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
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