maximumFractionDigits has no effect #26213
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closed: question
A user misinterpretation or support question. No action required.
Content:JS
JavaScript docs
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Hi! The options must be passed as the second parameter. The first parameter is the locale. You can get the right result if you pass a locale: new Intl.NumberFormat("en-US", { maximumFractionDigits: 5 }).resolvedOptions().maximumFractionDigits;
new Intl.NumberFormat([], { maximumFractionDigits: 5 }).resolvedOptions().maximumFractionDigits;
new Intl.NumberFormat(undefined, { maximumFractionDigits: 5 }).resolvedOptions().maximumFractionDigits; |
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MDN URL
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/NumberFormat
What specific section or headline is this issue about?
maximumFractionDigits option
What information was incorrect, unhelpful, or incomplete?
The documentation explains that an option called
maximumFractionDigitscan be set and will be used accordingly. But I cannot observe this behaviour in any browser. It's ignored when set in the constructor, so I assume it cannot be configured.What did you expect to see?
Here's a simple test case for the console:
new Intl.NumberFormat({ maximumFractionDigits: 5 }).resolvedOptions().maximumFractionDigitsThis should return 5 but it returns its default value of 3. And the number formatting also caps at 3 decimals at most.
Do you have any supporting links, references, or citations?
No response
Do you have anything more you want to share?
I want to format numbers with 1 to 5 decimals, depending on the size. None of the NumberFormat options can do this, and they even fail with manual configuration. So I guess I'll have to implement it myself, taking the decimal separator from my existing texts dictionary and using simple Math.round() and String.replace() as needed.
MDN metadata
Page report details
en-us/web/javascript/reference/global_objects/intl/numberformat/numberformatThe text was updated successfully, but these errors were encountered: