Mod:Creation Kit/Expression Reference

::= ( ('.' )*) |       ::= ['[' ']']             ::= ('(' ')') | ('new' '[' ']') | ::= ['[' ']']      ::= |  | 'length'

The basic expression is an arrangement of operators, function calls, and variables chained together in such a way to do some work. These operations follow the rules of precedence to determine which gets executed first.