calculatorOperations top-level property
Map<String, dynamic Function(dynamic prevValue, dynamic nextValue)>
calculatorOperations
getter/setter pair
Implementation
var calculatorOperations = {
'/': (prevValue, nextValue) => prevValue / nextValue,
'*': (prevValue, nextValue) => prevValue * nextValue,
'+': (prevValue, nextValue) => prevValue + nextValue,
'-': (prevValue, nextValue) => prevValue - nextValue,
'=': (prevValue, nextValue) => nextValue
};