mkString method
Returns a String by using each elements toString(), adding sep
between each element. If start is defined, it will be prepended to the
resulting string. If end is defined, it will be appended to the
resulting string.
Implementation
String mkString({String? start, String? sep, String? end}) {
if (knownSize == 0) {
return '${start ?? ""}${end ?? ""}';
} else {
return _mkStringImpl(StringBuffer(), start ?? '', sep ?? '', end ?? '');
}
}