Want to remove the suffix "日" when using DateFormat('d') in 'ja_JP'.

[Kurogoma939]

Is your feature request related to a problem? Please describe. When Intl.defaultFormat = 'ja_JP and use DateFormat('d'). The result contain "日" .

Describe the solution you'd like I don't think I need the "日".

Describe alternatives you've considered

I couldn't think of an alternative, but if I want to put a"日" on it, use a custom format.

Additional context nothing.

[Kurogoma939]

so I want to fix like this.

https://github.com/dart-lang/i18n/blob/main/pkgs/intl/lib/src/data/dates/patterns/ja.json

{"d":"d","E":"ccc","EEEE":"cccc","LLL":"M月","LLLL":"M月","M":"M","Md":"M/d","MEd":"M/d(EEE)","MMM":"M月","MMMd":"M月d日","MMMEd":"M月d日(EEE)","MMMM":"M月","MMMMd":"M月d日","MMMMEEEEd":"M月d日EEEE","QQQ":"QQQ","QQQQ":"QQQQ","y":"y","yM":"y/M","yMd":"y/M/d","yMEd":"y/M/d(EEE)","yMMM":"y年M月","yMMMd":"y年M月d日","yMMMEd":"y年M月d日(EEE)","yMMMM":"y年M月","yMMMMd":"y年M月d日","yMMMMEEEEd":"y年M月d日EEEE","yQQQ":"y/QQQ","yQQQQ":"y年QQQQ","H":"H","Hm":"H:mm","Hms":"H:mm:ss","j":"H時","jm":"H:mm","jms":"H:mm:ss","jmv":"H:mm v","jmz":"H:mm z","jz":"H時 z","m":"m","ms":"mm:ss","s":"s","v":"v","z":"z","zzzz":"zzzz","ZZZZ":"ZZZZ"}

I organized in table

key	Before	After
d	d日	d
E	ccc	ccc
EEEE	cccc	cccc
LLL	M月	M月
LLLL	M月	M月
M	M月	M
Md	M/d	M/d
MEd	M/d(EEE)	M/d(EEE)
MMM	M月	M月
MMMd	M月d日	M月d日
MMMEd	M月d日(EEE)	M月d日(EEE)
MMMM	M月	M月
MMMMd	M月d日	M月d日
MMMMEEEEd	M月d日EEEE	M月d日EEEE
QQQ	QQQ	QQQ
QQQQ	QQQQ	QQQQ
y	y年	y
yM	y/M	y/M
yMd	y/M/d	y/M/d
yMEd	y/M/d(EEE)	y/M/d(EEE)
yMMM	y年M月	y年M月
yMMMd	y年M月d日	y年M月d日
yMMMEd	y年M月d日(EEE)	y年M月d日(EEE)
yMMMM	y年M月	y年M月
yMMMMd	y年M月d日	y年M月d日
yMMMMEEEEd	y年M月d日EEEE	y年M月d日EEEE
yQQQ	y/QQQ	y/QQQ
yQQQQ	y年QQQQ	y年QQQQ
H	H時	H
Hm	H:mm	H:mm
Hms	H:mm:ss	H:mm:ss
j	H時	H時
jm	H:mm	H:mm
jms	H:mm:ss	H:mm:ss
jmv	H:mm v	H:mm v
jmz	H:mm z	H:mm z
jz	H時 z	H時 z
m	m	m
ms	mm:ss	mm:ss
s	s	s
v	v	v
z	z	z
zzzz	zzzz	zzzz
ZZZZ	ZZZZ	ZZZZ

[mosuem]

The data for package:intl is generated from CLDR data, which does use this character. If you disagree, consider filing a bug with the CLDR repository here.

[Kurogoma939]

Thank you @mosuem !!

[Kurogoma939]

We found it quite difficult to make this fix. So I thought it would be easier to solve this problem by overwriting the defaultLocale as follows when the Locale of the device is ja_JP.

Intl.defaultLocale = 'en_US';

[mosuem]

You could also use initializeDateFormattingCustom to define and import custom formatting data.

[Kurogoma939]

I didn't know the function! thanks!!