Comments

Lines starting with -- are ignored by the compiler, and are useful for describing something to human readers.

-- Nothing to see here

You can also use {- -} to have comments span multiple lines.

{- This comment
spans
multiple lines
-}

Comments can be used pretty much everywhere, as they’re completely ignored by the compiler.

Documentation comments

There are special kinds of comments, called documentation comments, which are recognized by the compiler as being documentation for a module or a value.

These comments are enclosed within {-| -} and will be used to render documentation on packages.gren-lang.org.

{-| This is an approximation of pi
-}
pi = 3.14