@vaadin/hilla-react-i18n/FormatCache.js

Hilla I18n utils for React

import { IntlMessageFormat } from "intl-messageformat";
export class FormatCache {
	#language;
	#formats = new Map();
	constructor(language) {
		let supportedLocales = [];
		try {
			supportedLocales = Intl.NumberFormat.supportedLocalesOf(language);
		} catch {}
		this.#language = supportedLocales.length > 0 ? supportedLocales[0] : navigator.language;
	}
	getFormat(translation) {
		let format = this.#formats.get(translation);
		if (!format) {
			format = new IntlMessageFormat(translation, this.#language);
			this.#formats.set(translation, format);
		}
		return format;
	}
}
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