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
, 7832 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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