Javascript Intl.NumberFormat supportedLocalesOf()

Introduction

The Javascript Intl.NumberFormat.supportedLocalesOf() method returns supported options by locale. 

Intl.NumberFormat.supportedLocalesOf(locales[, options])
Parameter
 Optional
 Meaning
locales
 Required
 A string with a language tag
options



 Optional



 An object that may have the following property:
localeMatcher The locale matching algorithm to use.
Possible values are "lookup" and "best fit"
Default to "best fit".

Using supportedLocalesOf() 

var locales = ['ban', 'id-u-co-pinyin', 'de-ID'];
var options = { localeMatcher: 'lookup' };
console.log(Intl.NumberFormat.supportedLocalesOf(locales, options).join(', '));



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