Miscellaneous Syntax

Ending an Expression

Ruby uses a newline as the end of an expression. When ending a line with an operator, open parentheses, comma, etc. the expression will continue.

You can end an expression with a ; (semicolon). Semicolons are most frequently used with ruby -e.

Ruby does not require any indentation. Typically, ruby programs are indented two spaces.

If you run ruby with warnings enabled and have an indentation mis-match, you will receive a warning.

The alias keyword is most frequently used to alias methods. When aliasing a method, you can use either its name or a symbol:

alias new_name old_name
alias :new_name :old_name