秒味课堂Angular js笔记------过滤器
- 不同过滤器的小demo。
currency
number
uppercase
json
limitTo
date
orderBy
filter
<script>
var filterMy = angular.module("fliterMy",[]);
filterMy. controller("filter", ["$scope",function($scope)
$scope.name = "345343";
$scope.str = "hello";
$scope.jsonTest = {"name" : "Gary" , "age" , 10};
$scope.numbers = [
{"color":"red","age":"20"},
{"color":"yellow","age":"30"},
{"color":"blue","age":"40"},
{"color":"green","age":"50"}
]
])
</script>
<body>
<div ng-controller = "filter">
<p>{{name | curency:"￥"}}</p> //￥345,343.00
<p>{{name | number}}</p> //345,343当有小数时候，默认保留3位，number:2保留两位小数；
<p>{{str | uppercase}}</p> //HELLO
<pre>{{jsonTest | json}}</pre> //将json格式化成标准格式
<p>{{str | limitTo : 3}}</p> // hel 同时，limitTo 也可以支持数组的截取
<p>{{name | date}}</p> //将毫秒数输出日期格式，参数可以有很多，输出不同的日期格式
<p>{{numbers | orderBy : 'color' :true}}</p> //按照color排序,true代表是降序
<p>{{numbers | filter : '40'}}</p> //匹配数组中存在40所在项，filters :'l':true 完全匹配
</div>
</body>
- 过滤器扩展-组合使用
过滤器可以组合使用，通过多个 | 符号，比如：
<p>{{str | limitTo : 3 | uppercase}}</p> //取前3位，并且变成大写
- js中使用过滤器$filter
<script>
var filterMy = angular.module("fliterMy",[]);
filterMy. controller("filter", ["$scope","$fliter",function($scope,$filter)
$scope.name = $filter('number')('345343');
])
</script>
<body>
<div ng-controller = "filter">
<p>{{name}}</p> //￥345,343.00
</div>
</body>
- 自定义过滤器
<script>
var filterMy = angular.module("fliterMy",[]);
filterMy.filter('firstUpper',function(){
return function(str){
return str.charAt(0).toUppercase() +str.substring(1);
}
})
filterMy.controller("filter", ["$scope",function($scope)
$scope.str = "hello";
])
</script>
<body>
<div ng-controller = "filter">
<p>{{name | firstUpper}}</p>
</div>
</body>
- js中使用自定义过滤器
<script>
var filterMy = angular.module("fliterMy",[]);
filterMy.filter('firstUpper',function(){
return function(str){
return str.charAt(0).toUppercase() +str.substring(1);
}
})
filterMy.controller("filter",["$scope","$filter",function($scope,$filter)
$scope.name = $filter('firstUpper')('hello');//js中使用过滤器
])
</script>
<body>
<div ng-controller = "filter">
<p>{{name}}</p>
</div>
</body>
