在此页

• 句法
• 范例
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

Intl.PluralRules() constructor creates Intl.PluralRules 对象。

句法

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

					

参数

locales

Optional. A string with a BCP 47 language tag, or an array of such strings. For the general form and interpretation of the locales argument, see the Intl page .

options

Optional. An object with some or all of the following properties:

localeMatcher

The locale matching algorithm to use. Possible values are "lookup" and "best fit" ; the default is "best fit" . For information about this option, see the Intl page .

type

The type to use. Possible values are:

• "cardinal" for cardinal numbers (refering to the quantity of things). This is the default value.
• "ordinal" for ordinal number (refering to the ordering or ranking of things, e.g. "1st", "2nd", "3rd" in English).

The following properties fall into two groups: minimumIntegerDigits , minimumFractionDigits ，和 maximumFractionDigits in one group, minimumSignificantDigits and maximumSignificantDigits in the other. If at least one property from the second group is defined, then the first group is ignored.

minimumIntegerDigits

The minimum number of integer digits to use. Possible values are from 1 to 21; the default is 1.

minimumFractionDigits

The minimum number of fraction digits to use. Possible values are from 0 to 20; the default for plain number and percent formatting is 0; the default for currency formatting is the number of minor unit digits provided by the ISO 4217 currency code list (2 if the list doesn't provide that information).

maximumFractionDigits

The maximum number of fraction digits to use. Possible values are from 0 to 20; the default for plain number formatting is the larger of minimumFractionDigits and 3; the default for currency formatting is the larger of minimumFractionDigits and the number of minor unit digits provided by the ISO 4217 currency code list (2 if the list doesn't provide that information); the default for percent formatting is the larger of minimumFractionDigits and 0.

minimumSignificantDigits

The minimum number of significant digits to use. Possible values are from 1 to 21; the default is 1.

maximumSignificantDigits

The maximum number of significant digits to use. Possible values are from 1 to 21; the default is 21.

范例

基本用法

In basic use without specifying a locale, a formatted string in the default locale and with default options is returned. This is useful to distinguish between singular and plural forms, e.g. "dog" and "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
					

Using options

The results can be customized using the options argument, which has one property called type which you can set to ordinal . This is useful to figure out the ordinal indicator, e.g. "1st", "2nd", "3rd", "4th", "42nd" and so forth.

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
ECMAScript 国际化 API (ECMA-402) The definition of 'Intl.PluralRules() constructor' in that specification.

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	Desktop						Mobile						Server
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet	Node.js
PluralRules() 构造函数	Chrome 63	Edge 18	Firefox 58	IE No	Opera 50	Safari 13	WebView Android 63	Chrome Android 63	Firefox Android 58	Opera Android 46	Safari iOS 13	Samsung Internet Android 8.0	nodejs 13.0.0 13.0.0 部分支持 10.0.0 Before version 13.0.0, only the locale data for en-US is available by default. When other locales are specified, the PluralRules instance silently falls back to en-US . To make full ICU (locale) data available for versions prior to 13, see Node.js documentation on the --with-intl option and how to provide the data.

图例

完整支持

完整支持

不支持

不支持

见实现注意事项。

另请参阅

• Intl

元数据

• 最后修改： Apr 21, 2020

相关话题

1. 标准内置对象
2. Intl
3. 方法
   1. Intl.getCanonicalLocales()
4. 相关页面：
5. Collator
6. DateTimeFormat
7. ListFormat
8. NumberFormat
9. PluralRules
10. RelativeTimeFormat
11. 继承：
12. Object
13. 特性
    1. Object.prototype.__proto__
    2. Object.prototype.constructor
14. 方法
    1. Object.prototype.__defineGetter__()
    2. Object.prototype.__defineSetter__()
    3. Object.prototype.__lookupGetter__()
    4. Object.prototype.__lookupSetter__()
    5. Object.prototype.hasOwnProperty()
    6. Object.prototype.isPrototypeOf()
    7. Object.prototype.propertyIsEnumerable()
    8. Object.prototype.toLocaleString()
    9. Object.prototype.toSource()
    10. Object.prototype.toString()
    11. Object.prototype.valueOf()
    12. Object.setPrototypeOf()