Purpose of "?

[prothero at earthlearningsolutions.org]

In this discussion of the use of the merge function at:
http://newsletters.livecode.com/august/issue55/newsletter2.php
The samples use quot; extensively.

For example:
on mouseUp 
   put merge("[[quote]]Foobar[[quote]] [[the short name of \ this      
   stack]]") & return & \ merge("[[the layer of this card]] / 
   [[the short ID \ of me]]") into tVariable 
end mouseUp
This script, as written, throws an error in the SE in LC 9.0.2. Mac OS10.14

What is the meaning of the " in the expression? That seems to be the source an error.

The merge function looks very useful, but I’m obviously missing something.

Best,
Bill

William Prothero
http://es.earthednet.org