getAsNullableInteger method
Converts map element into an integer or returns null if conversion is not possible.
key
a key of element to get. Returns integer value of the element or null if conversion is not supported.
See IntegerConverter.toNullableInteger
Implementation
int? getAsNullableInteger(String key) {
var value = get(key);
return IntegerConverter.toNullableInteger(value);
}