478: Mainline

When you wish to extract a particular character from a string, you use the at: method, with the argument indicating the character that you wish to extract. A 1 argument indicates that you want the first character, because all string indexing is one based, as it is with arrays:

  *-- Variable with a string assignment 
  |     *-- Method 
  |     |  *-- Index of character to be extracted 
  v     v  | 
------ --- v        
string at: 1