`Intl.NumberFormat`: `maximumFractionDigits` is used for exact number of digits instead of maximum for `style: "currency"`

[amitbeck]

Version

v22.14.0

Platform

Darwin MacBook-Pro 24.3.0 Darwin Kernel Version 24.3.0: Thu Jan  2 20:24:23 PST 2025; root:xnu-11215.81.4~3/RELEASE_ARM64_T6020 arm64

Subsystem

No response

What steps will reproduce the bug?

Run the following:

Intl.NumberFormat('en-US', {
  notation: 'compact',
  maximumFractionDigits: 1,
  style: 'currency',
  currency: 'USD'
}).format(3_000_000)

How often does it reproduce? Is there a required condition?

Constantly

What is the expected behavior? Why is that the expected behavior?

The previous code snippet should output "$3M", because the number is round, notation is set to "compact" and maximumFractionDigits is set to 1. For comparison Chrome 133.0.6943.98 (V8 13.3.415.21) correctly outputs "$3M".

What do you see instead?

The previous code outputs "$3.0M" in Node.js v22.14.0 (V8 12.4.254.21-node.22), while Chrome 133.0.6943.98 (V8 13.3.415.21) outputs "$3M".

It seems that when using style: "currency" and specifying maximumFractionDigits, for some reason Node.js uses that number as the exact number of fraction digits instead of a maximum.

Additional information

No response

[targos]

This will be fixed in the next V8 update (#57114), but only in v24.

[github-actions]

This issue has been marked as stale due to 210 days of inactivity.
It will be automatically closed in 30 days if no further activity occurs. If this is still relevant, please leave a comment or update it to keep it open.

[amitbeck]

@targos was this was fixed in these commits?

[targos]

I'm not sure, but since this is fixed in v24+, we can close the issue.