R - Concatenate integer arrays

Question

How can I join 1:3 and 7:8 to 1 2 3 7 8?

Where is a good resource to pick up peculiars like this?

Answer 1

You could do this as well:

 v<-c(1:3)
 v<-c(v, 7:8)

Answer 2

c(1:3, 7:8)
[1] 1 2 3 7 8

The help page indicates this is a generic function which combines its arguments.