Function Modifying a Character String

Question

I need a function that will take input as a character string (BLANK) and print out the following:

"Hello BLANK World"

i.e., world("seven") prints out "Hello seven World"

I'm very confused on how to work with character strings in R.

Answer 1

You want the function paste

world <- function(x) paste("Hello", x, "World")

Answer 2

Or...

 x <- "seven"
 sprintf("Hello %s World", x)

In other words no need for a world function as that's what sprintf does.