Intl.PluralRules
Creates an Intl.PluralRules object that enables plural-sensitive formatting and language-specific rules for plurals
Syntax
new Intl.PluralRules(locales?, options?)Parameters
| Parameter | Type | Description |
|---|---|---|
| locales | string | string[] | A BCP 47 language tag or array of tags |
| options | Intl.PluralRulesOptions | Options: type (cardinal or ordinal) |
Return Value
An Intl.PluralRules object with a select() method
Examples
const pr = new Intl.PluralRules('en-US')
console.log(pr.select(0)) // 'other'
console.log(pr.select(1)) // 'one'
console.log(pr.select(2)) // 'other'const pr = new Intl.PluralRules('en-US', { type: 'ordinal' })
console.log(pr.select(1)) // 'one' (1st)
console.log(pr.select(2)) // 'two' (2nd)
console.log(pr.select(3)) // 'few' (3rd)
console.log(pr.select(4)) // 'other' (4th)function pluralize(count: number, singular: string, plural: string, locale = 'en') {
const pr = new Intl.PluralRules(locale)
return pr.select(count) === 'one' ? singular : plural
}
console.log(pluralize(1, 'item', 'items')) // 'item'
console.log(pluralize(5, 'item', 'items')) // 'items'Understanding Intl.PluralRules
The Intl.PluralRules method in JavaScript creates an Intl.PluralRules object that enables plural-sensitive formatting and language-specific rules for plurals. It belongs to the Intl object and is one of the most widely used methods for working with intl values in modern JavaScript and TypeScript applications.
The method signature is new Intl.PluralRules(locales?, options?). It accepts 2 parameters: locales, options. When called, it returns an intl.pluralrules object with a select() method. Understanding when and how to use PluralRules() helps you write more expressive, readable code.
Common use cases for Intl.PluralRules include data transformation, input validation, API response processing, and building reusable utility functions. It works well alongside related methods like intl-numberformat, intl-listformat, intl-relativetimeformat, enabling you to chain operations together for complex data manipulation pipelines.
Browser support for Intl.PluralRules is excellent across all modern browsers including Chrome, Firefox, Safari, and Edge. It is also fully supported in Node.js and Deno. For older environments, transpilation with Babel or a polyfill may be needed.
Browser Compatibility
Supported in all modern browsers (Chrome, Firefox, Safari, Edge) and Node.js. Part of the ECMAScript standard.
Related Methods
Intl.NumberFormatCreates an Intl.NumberFormat object that enables language-sensitive number formatting
Intl.ListFormatCreates an Intl.ListFormat object that enables language-sensitive list formatting
Intl.RelativeTimeFormatCreates an Intl.RelativeTimeFormat object that enables language-sensitive relative time formatting
More Intl Methods
Other methods in the Intl object
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