Exactly. Something that actually answers the original question - like this:
int\[\] existingArray = { 1, 12, 123, 1234 };
existingArray = existingArray.Concat(new\[\] { 12345 }).ToArray();
Exactly. Something that actually answers the original question - like this:
int\[\] existingArray = { 1, 12, 123, 1234 };
existingArray = existingArray.Concat(new\[\] { 12345 }).ToArray();