15 lines
495 B
JavaScript
15 lines
495 B
JavaScript
// @flow
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const formatterCache = {};
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// Creating multiple Intl.NumberFormat instances can
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// be expensive, that's why we perform a very simple
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// cache.
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// See https://github.com/formatjs/formatjs/issues/27#issuecomment-61148808
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export function getFormatter(language?: string, options: any) {
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const key = `${language || ''}:${JSON.stringify(options || {})}`;
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if (!formatterCache[key]) {
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formatterCache[key] = new Intl.NumberFormat(language, options);
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}
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return formatterCache[key];
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}
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