plusSign Specifies the symbol for the plus sign, a CFString object. Declarationstatic let plusSign: CFNumberFormatterKey! See AlsoConstantscurrencyCodedecimalSeparatorcurrencyDecimalSeparatoralwaysShowDecimalSeparatorgroupingSeparatoruseGroupingSeparatorpercentSymbolzeroSymbolnaNSymbolinfinitySymbolminusSigncurrencySymbolexponentSymbolminIntegerDigitsmaxIntegerDigits