Hot to get user’s regional settings for currency in JavaScript or jQuery?

Question

I’m trying to format some numbers with jQuery. I would like to get the user’s regional settings for currency and number, in order to implement the correct format (obtain the decimal separator).

Is it possible to retrieve these parameters with jQuery or JavaScript?

Answer 1

Use Number.toLocaleString() with style:'currency':

(73.57).toLocaleString('de-DE',{style:'currency',currency:'EUR'}); // German: 73,57 €
(73.57).toLocaleString('en-US',{style:'currency',currency:'EUR'}); // American: €73.57

Note that:

• This does not get regional settings, but provides output in regional settings.
• If you want your locale to be determined dynamically, use navigator.language.
• There are many other means aside from this native approach; for starters, take a look at accounting.js or Stack Overflow answers like this one.

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^{As Daniel Jackson commented:}

Using Intl.NumberFormat.format(), you can achieve identical results, with the NumberFormat and the general Intl objects offering versatile options and methods with a main focus on language sensitivity.

new Intl.NumberFormat('de-DE',{style:'currency',currency:'EUR'}).format(73.57); // DE: 73,57 €
new Intl.NumberFormat('en-US',{style:'currency',currency:'EUR'}).format(73.57); // US: €73.57