Function getExchangeRate

getExchangeRate(
    fromCurrency: string | undefined,
    toCurrency: string | undefined,
    rates: ExchangeRates,
): number | undefined
Computes the cross-rate between two currencies given a rates dictionary. Returns 1 when both currencies are the same and undefined when either currency is missing from the dictionary.
Parameters
- fromCurrency: string | undefined
- toCurrency: string | undefined
- rates: ExchangeRates
Returns number | undefined
- Defined in utils/currency/currency.ts:118