CurrencyConverter.convert-exclamation-mark

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Link to this function

convert!(source_currency, target_currency)

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Specs

convert!(source_currency :: String.t(), target_currency :: String.t()) ::
  number() | no_return()

Coverts source currency to target currency.

Example:

iex> CurrencyConverter.convert!("USD", "JPY")
108.78504 # 1 USD =~ 108.78504 JPY