Beginning AppleScript®

5.2. Review of Concatenation

You may recall that using the operator & between two strings has the effect of joining (or concatenating) the two strings together. So if you write

set message to "Hello, "  & "Greg!"

you end up with the string "Hello, " followed by the string "Greg!" being assigned to message, just as if you had written

set message to "Hello, Greg!"

If a user's name is stored inside a variable called firstName, you could write the statement

set message to "Hello, " & firstName

to join the string "Hello, " with the string stored in firstName, and then assign the result to message.

You can perform multiple concatenation operations in a single statement. If the variable firstName contains the string "Allan", and the string lastName contains the string "Fiber", writing the following statement

set message to "Hello, " & firstName & " " & lastName & "!"

has the effect of concatenating the five indicated strings in succession and storing the result of "Hello, Allan Fiber!" in the variable message.

If you concatenate a string with something that's not a string...