string when not using an output range; void otherwise.DateTime.toISOExtString
string toISOExtString() const @safe pure nothrowConverts this DateTime to a string with the format YYYY-MM-DDTHH:MM:SS. If writer is set, the resulting string will be written directly to it.
Parameters
writer | A char accepting output range |
Returns
A
void toISOExtString(W)(ref W writer) if (isOutputRange!(W, char)) constditto