Function handleFallbackCurrency

src/utils/formatNumbers.ts:697–707

(
  selectedCurrency: SupportedLocalCurrency,
  previousSelectedCurrency: SupportedLocalCurrency | undefined,
  previousConversionRate: number | undefined,
  shouldFallbackToUSD: boolean,
  shouldFallbackToPrevious: boolean
)

}

function handleFallbackCurrency(
  selectedCurrency: SupportedLocalCurrency,
  previousSelectedCurrency: SupportedLocalCurrency | undefined,
  previousConversionRate: number | undefined,
  shouldFallbackToUSD: boolean,
  shouldFallbackToPrevious: boolean
) {
  if (shouldFallbackToUSD) return DEFAULT_LOCAL_CURRENCY
  if (shouldFallbackToPrevious) return previousConversionRate ? previousSelectedCurrency : DEFAULT_LOCAL_CURRENCY
  return selectedCurrency
}

// Constructs an object that injects the correct locale and local currency into each of the above formatter functions.
export function useFormatter() {