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对象的英文请立即获取iTunes多种敏感格式状语从句:多种语言规则对象的构造函数。Intl.PluralRules

句法

new Intl.PluralRules([locales[, options]]) Intl.PluralRules.call(this[, locales[, options]])

参数

locales

可选的。一个带有BCP 47语言标签的字符串或这种字符串的数组。有关参数的一般形式和解释locales,请参阅Intl page

options

可选的,具有部分或全部以下属性的对象:

localeMatcher
要使用的语言环境匹配算法。可能的值是"lookup""best fit"; 默认是"best fit"有关此选项的信息,请参阅Intl page
type
要使用的类型。可能的值是:
  • "cardinal"对于基数(指的是事物的数量)。这是默认值。
  • "ordinal" 对于序号(指的是事物的排序或排名,例如英文中的“1st”,“2nd”,“3rd”)。

描述

属性

Intl.PluralRules.prototype
允许为所有对象添加属性。

方法

Intl.PluralRules.supportedLocalesOf()
返回一个数组,其中包含提供的语言环境的支持,而不必回退到运行时的默认语言环境。

PluralRules 实例

属性

PluralRules 实例从其原型继承了以下属性:

Intl.PluralRules.prototype.constructor
A reference to Intl.PluralRules.

方法

PluralRules 实例从它们的原型继承了以下方法:

Intl.Plural.prototype.resolvedOptions()
Returns a new object with properties reflecting the locale and collation options computed during initialization of the object.
Intl.PluralRules.prototype.select()
Returns a String indicating which plurar rule to use for locale-aware formatting.

例子

基本用法

在没有指定语言环境的基本使用中,返回默认语言环境中的格式化字符串和默认选项这有助于区分单数和复数形式,例如“dog”和“dogs”。

var pr = new Intl.PluralRules();

pr.select(0);
// → 'other' if in US English locale

pr.select(1);
// → 'one' if in US English locale

pr.select(2);
// → 'other' if in US English locale

运用 locales

这个例子展示了局部复数规则的一些变化。为了获得应用程序用户界面中使用的语言格式,请确保使用locales参数指定该语言(可能还有一些备用语言)

// Arabic has different plural rules

new Intl.PluralRules('ar-EG').select(0);
// → 'zero'
new Intl.PluralRules('ar-EG').select(1); 
// → 'one'
new Intl.PluralRules('ar-EG').select(2);
// → 'two'
new Intl.PluralRules('ar-EG').select(6);
// → 'few'
new Intl.PluralRules('ar-EG').select(18);
// → 'many'

运用 options

可以查询查询结果使用options参数进行自定义,该参数具有一个type您可以设置的属性ordinal这对计算序数指标很有用,例如“第一”,“第二”,“第三”,“第四”,“42”等。

var pr = new Intl.PluralRules('en-US', { type: 'ordinal' });

pr.select(0);
// → 'other'
pr.select(1);
// → 'one'
pr.select(2);
// → 'two'
pr.select(3);
// → 'few'
pr.select(4);
// → 'other'
pr.select(42);
// → 'two'

规范

规范 状态 评论
国际复数规则草案 Draft 初始定义

浏览器兼容性

Update compatibility data on GitHub
DesktopMobileServer
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidiOS SafariSamsung InternetNode.js
Basic supportChrome Full support 63Edge No support NoFirefox Full support 58IE No support NoOpera Full support 50Safari No support NoWebView Android Full support 63Chrome Android Full support 63Edge Mobile No support NoFirefox Android Full support 58Opera Android Full support 50Safari iOS No support NoSamsung Internet Android No support Nonodejs No support No
prototypeChrome Full support 63Edge No support NoFirefox Full support 58IE No support NoOpera Full support 50Safari No support NoWebView Android Full support 63Chrome Android Full support 63Edge Mobile No support NoFirefox Android Full support 58Opera Android Full support 50Safari iOS No support NoSamsung Internet Android No support Nonodejs No support No
resolvedOptionsChrome Full support 63Edge No support NoFirefox Full support 58IE No support NoOpera Full support 50Safari No support NoWebView Android Full support 63Chrome Android Full support 63Edge Mobile No support NoFirefox Android Full support 58Opera Android Full support 50Safari iOS No support NoSamsung Internet Android No support Nonodejs No support No
selectChrome Full support 63Edge No support NoFirefox Full support 58IE No support NoOpera Full support 50Safari No support NoWebView Android Full support 63Chrome Android Full support 63Edge Mobile No support NoFirefox Android Full support 58Opera Android Full support 50Safari iOS No support NoSamsung Internet Android No support Nonodejs No support No
supportedLocalesOfChrome Full support 63Edge No support NoFirefox Full support 58IE No support NoOpera Full support 50Safari No support NoWebView Android Full support 63Chrome Android Full support 63Edge Mobile No support NoFirefox Android Full support 58Opera Android Full support 50Safari iOS No support NoSamsung Internet Android No support Nonodejs No support No

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