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This feature is well established and works across many devices and browser versions. Its been available across browsers since 2017 ..
* Some parts of this feature may have varying levels of support.
Intl API ECMAScript, - , . Collator, NumberFormat DateTimeFormat Intl. , - .
Intl.Collator, - .
Intl.DateTimeFormat, - .
Intl.NumberFormat, - .
Intl.getCanonicalLocales()Returns canonical locale names.
, - ( ) : locales options () , options.localeMatcher.
locales locales , BCP 47, . locales , .
BCP 47 ( ). : , , . :
"hi": ."de-AT": , ."zh-Hans-CN": , ., , , () ( ) BCP 47 IANA.
BCP 47 , JavaScript: "u" (Unicode). - Collator, NumberFormat DateTimeFormat. :
"de-DE-u-co-phonebk": , : ae, oe, ue."th-TH-u-nu-thai": (, , , , , , , , , ) ."ja-JP-u-ca-japanese": , 2013 25- 25. locales, Unicode, . . : "lookup" () , BCP 47; "best fit" ( ) , , , , , , . locales , , . options ( ).
Unicode, . , Unicode, . , "co" () Collator, "phonebk" .
options options , . options , .
- : localeMatcher, "lookup" "best fit" , .
| Specification |
|---|
| ECMAScript 2027 Internationalization API Specification # intl-object |
This page was last modified on 29 . 2026 . by MDN contributors.
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