Concatenate: to link two items together

Input Expression

one <- "Hello"
two <- "World"
message <- one + " " + two
DISPLAY(message)

Input Expression

one <- "Hello"
two <- "World"
message <- one + " " + two
DISPLAY(message)

Hello World

Concatenating Numbers?

1. Both sides of + are strings - concatenate
2. Both sides of + are numbers - add
3. Cannot apply + to a string and a number
4. Concatenate always returns a string