### `Intl.DurationFormat` Stage 3 Update β³
### TC39 September 2022 π―π΅
---
```javascript=
const duration = { years: 1, months: 2, days: 3 }
const df = new Intl.DurationFormat('jp', { style: 'long' })
df.format(duration) // => 1εΉ΄2γΆζγ¨3ζ₯
```
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# Bug Fixes
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## Pass 0 as fallback for fractionalDigits ([#113](https://github.com/tc39/proposal-intl-duration-format/pull/113))
- Sets the fallback of `fractionalDigits` to `0` instead of `undefined`.
- A spec oversight, this caused non-ideal output in certain cases.
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## Tweak "digital" defaults
1. [Change digital default from `"narrow"` to `"short"` for YMWD](https://github.com/tc39/proposal-intl-duration-format/pull/123)
`1y 2m 3d 04:05:06 => 1 yr 2 mo 3 d 04:05:06`
2. [Change default display to `"always"` for HMS](https://github.com/tc39/proposal-intl-duration-format/pull/124)
`04:05 => 00:04:05`
---
# Improvements
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## Use `NumberFormat` unit formatting ([#122](https://github.com/tc39/proposal-intl-duration-format/pull/122))
- DRY `DurationFormat` by using `NumberFormat` to format individual units
- Removes the need for handling pluralization internally.
- Depends on [tc39/ecma402#708](https://github.com/tc39/ecma402/pull/708)
- Thanks Frank!
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# Consensus?
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# Thanks!