ngPluralize学习笔记
重点： 该指令依赖于 en-US localization rules，该规则已经绑定于angular.js当中，重写方法参见**Angular i18n** , 根据配置不同指令的使用参数表示意思参见**Plural categories** **Angular's default en-US locale: “one” and “other”.**
Arguments
| Param | Type | Details |
|---|---|---|
| count | string expression |
The variable to be bound to. |
| when | string | The mapping between plural category to its corresponding strings. |
| offset(optional) | number | Offset to deduct from the total number. |
使用方法1 – count and when (default:‘en’)
<input type="text" ng-model="personCount">
<ng-pluralize count="personCount"
when="{'0': 'Nobody is viewing.',
'one': '1 person is viewing.',
'other': '{} people are viewing.'}">
</ng-pluralize>
解释：
- 0是明确值，所以优先匹配
- one匹配1， 所以匹配1
- other匹配剩余数字，匹配其他
- {} 作用： 相当于{{personCount}}
使用方法2 – count,offset and when(default:‘en’)
<input type="text" ng-model="personCount">
<ng-pluralize count="personCount" offset=2
when="{'0': 'Nobody is viewing.',
'1': '{{person1}} is viewing.',
'2': '{{person1}} and {{person2}} are viewing.',
'one': '{{person1}}, {{person2}} and one other person are viewing.',
'other': '{{person1}}, {{person2}} and {} other people are viewing.'}">
</ng-pluralize>
解释：
- offset作用: 除了明确值，count-offset=rule(规则匹配的值)
- 0,1,2位明确值，则优先匹配显示
- one规则匹配1, 根据（count-offset=rule), 则count为3时匹配该规则
- other规则匹配其他，同样根据算法，则count>3时匹配该规则
完整例子参考
<!DOCTYPE html>
<html ng-app='plur'>
<head>
<title></title>
<script type="text/javascript" src="../bower_components/angular/angular.js"></script>
<script type="text/javascript">
angular.module('plur', []);
angular.module('plur')
.controller('plurController', ['$scope', function($scope) {
$scope.person1 = 'Huis';
$scope.person2 = 'Yonna';
}]);
</script>
</head>
<body ng-controller="plurController">
<input type="text" ng-model="test.count">
<br>
<ng-pluralize count="test.count" when="{
'0':'Nobody',
'one':'{} person',
'12':'What a Heal!',
'other':'{} other person'
}"> </ng-pluralize>
<br>
<ng-pluralize count="test.count" when="{
'0': 'Nobody is View',
'1': '{{person1}} is View',
'2': '{{person1}} and {{person2}} is View',
'one': '{{person1}} , {{person2}} and one other person is View',
'other': '{{person1}} , {{person2}} and {} other person is View'
}" offset="2"></ng-pluralize>
</body>
</html>
Written with StackEdit.