angularjs过滤器(number)
妙音
posted @ 2014年8月22日 21:13
in webui
with tags
angularjs;过滤器;number
, 8256 阅读
用来精确浮点数(指定小数点位数).
在html中用法
{{ number_expression | number : fractionSize}}
在js中用法
$filter('number')(number, fractionSize)
参数
- number 待精确的数字
- factionSize(可选) 小数点后精确位数,默认值是3.
(默认情况下保留的小数位数小于等于3. 比如: 1234-->1234;1234.56789-->1234.568;1234.56-->1234.56)
例子
<!doctype html> <html ng-app='demo'> <meta charset='utf-8'> <body> <div ng-controller="ExampleController"> 输入数字: <input ng-model='val'><br> <!-- 默认格式 --> 默认格式: <span id='number-default'>{{val | number}}</span><br> <!-- factionSize=0 --> 保留0位: <span>{{val | number:0}}</span><br> <!--factionSize大于小数点位数 --> 保留10位: <span>{{val | number:10}}</span><br> <!-- factionSize小于小数点位数--> 保留2位: <span>{{val | number:2}}</span> </div> <script src="/static/lib/angular/angular.js"></script> <script src="/static/lib/angular-resource/angular-resource.min.js"></script> <script> var app = angular.module('demo', ['ngResource']) .controller('ExampleController', function($scope) { $scope.val = 1234.56789; }); </script> </body> </html>
显示结果
输入数字: 1,234.56789 默认格式: 1,234.568 保留0位: 1,235 保留10位: 1,234.5678900000 保留2位: 1,234.57
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