firstWhere method
Implementation
T? firstWhere(bool Function(T item) fn) {
reset();
while (next()) {
if (fn(value)) {
return value;
}
}
return null;
}
T? firstWhere(bool Function(T item) fn) {
reset();
while (next()) {
if (fn(value)) {
return value;
}
}
return null;
}