12 lines
281 B
Dart
12 lines
281 B
Dart
extension TakeWhile on String {
|
|
String takeWhile(Function charValidator) {
|
|
StringBuffer output = StringBuffer();
|
|
|
|
for (final char in this.codeUnits) {
|
|
if (charValidator(char)) output.writeCharCode(char);
|
|
else break;
|
|
}
|
|
|
|
return output.toString();
|
|
}
|
|
}
|