@automattic/format-currency/dist/cjs/get-cached-formatter.js

JavaScript library for formatting currency.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.getCachedFormatter = getCachedFormatter;
const formatterCache = new Map();
/**
 * Creating an Intl.NumberFormat is expensive, so this allows caching.
 *
 * TODO clk numberFormatCurrency Caching logic now same as numberFormat, except for fallback.
 * TODO clk numberFormatCurrency This should replace numberFormat's caching logic, after some cleanup (remove console.warn).
 */
function getCachedFormatter({ locale, fallbackLocale = 'en', options, }) {
    const cacheKey = JSON.stringify([locale, options]);
    try {
        return (formatterCache.get(cacheKey) ??
            formatterCache.set(cacheKey, new Intl.NumberFormat(locale, options)).get(cacheKey));
    }
    catch (error) {
        // If the locale is invalid, creating the NumberFormat will throw.
        // eslint-disable-next-line no-console
        console.warn(`Intl.NumberFormat was called with a non-existent locale "${locale}"; falling back to ${fallbackLocale}`);
        return getCachedFormatter({
            locale: fallbackLocale,
            options,
        });
    }
}
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