countStrInList method
Return >0 if String is in the List.
Implementation
int countStrInList(List<String> _l, String _s) {
int _c = 0;
for (var x = 0; x < _l.length; x++) {
if (_l[x].indexOf(_s) > -1) {
_c++;
}
}
return _c; // 0-length check in the receiver side.
}