asBoolOrNull method
Returns the picked value as bool or null
if it can't be interpreted
as bool.
Only the exact Strings "true" and "false" are valid boolean
representations. Other concepts of booleans such as 1
and 0
,
or "YES" and "NO" are not supported.
Use .let()
to parse those custom representations
pick(1).letOrNull((pick) {
if (pick.value == 1) {
return true;
}
if (pick.value == 0) {
return false;
}
return null;
});
Implementation
bool? asBoolOrNull() {
if (value == null) return null;
try {
return _parse();
} catch (_) {
return null;
}
}