Intl.NumberFormat() constructor — Locale options
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 Locale identification and negotiation. numberingSystem : The numbering system to use for number formatting, such as "arab", "hans", "ma
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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 Locale identification and negotiation. numberingSystem : The numbering system to use for number formatting, such as "arab", "hans", "mathsans", and so on. For a list of supported numbering system types, see Intl.supportedValuesOf(); the default is locale dependent. This option can also be set through the nu Unicode extension key; if both are provided, this options property takes precedence.
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MDN Web Docs — files/en-us/web/javascript/reference/global_objects/intl/numberformat/numberformat/index.md :: Locale options ↗Revision d14bee540b53 · CC-BY-SA-2.5