Index[A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [Z] elements, arrays counting else if statement else statement embedding links, query results display and ending sessions equality operator errors in tables executing queries expressions 2nd literals operators regular expressions variables extends operator, inheritance extract function extracting variables from arrays |