Japanese (ja)

Complete reference for the ja locale — live Intl API output, CLDR plural rules, and framework config snippets.

Referință locale

Japanese

Metadate locale

Cod BCP 47ja

Nume nativ日本語

Nume în englezăJapanese

Limbăja

RegiuneNiciuna (locale de bază)

ScriereJpan

Direcția textuluiDe la stânga la dreapta (LTR)

Categorii de plural CLDRother

Vorbitori estimați~125,000,000

Intl API Live Output

DateTimeFormat

Short2026/10/31

Medium2026/10/31

Long2026年10月31日

Full2026年10月31日土曜日

NumberFormat

Decimal1,234,567.89

Currency (USD)$9.99

Percent75%

Compact120万

RelativeTimeFormat

3 日前

Output for: -3 days ago

ListFormat

apples、oranges、bananas

Conjunction list: apples, oranges, bananas

CLDR Plural Rules

Categories supported by ja: other

otherExample number: 100

→ other

Framework Config Snippets

next-intl

// next-intl configuration
// next.config.ts
import createNextIntlPlugin from 'next-intl/plugin';
const withNextIntl = createNextIntlPlugin();
export default withNextIntl({});

// i18n/routing.ts
import { defineRouting } from 'next-intl/routing';
export const routing = defineRouting({
  locales: ['ja', 'en'],
  defaultLocale: 'en',
});

react-intl

// react-intl configuration
import { IntlProvider } from 'react-intl';
import messages from './messages/ja.json';

function App() {
  return (
    <IntlProvider locale="ja" messages={messages}>
      {/* your app */}
    </IntlProvider>
  );
}

i18next

// i18next configuration
import i18n from 'i18next';
import { initReactI18next } from 'react-i18next';

i18n
  .use(initReactI18next)
  .init({
    lng: 'ja',
    fallbackLng: 'en',
    resources: {
      'ja': {
        translation: require('./locales/ja/translation.json'),
      },
    },
  });

export default i18n;