RosettaCodeData/Task/Empty-string/Asymptote/empty-string.asymptote

string c;     //implicitly assigned an empty string
if (length(c) == 0) {
  write("Empty string");
} else {
  write("Non empty string");
}

string s = "";      //explicitly assigned an empty string
if (s == "")  {
  write("Empty string");
}
if (s != "")  {
  write("Non empty string");
}

string t = "not empty";
if (t != "")  {
  write("Non empty string");
} else {
  write("Empty string");
}