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Comments are useful for denoting useful information inside source code. Quby uses C-style comments, which are also used in JavaScript, and there are three types:

Single Line

These comments work from where they start, up to the end of the line. They are started using two forward slash characters.

// this is a single line comment

// and example of comments
def drawRect(
        // where to draw
        x, y,
        // the size
        width, height,
        // lets centre it

a = 5 // comments can appear after a statement

Multi-Line Comments

Using '/*' and '*/' to start and end these comments, they will span multiple lines. You can also insert them into the middle of a statement.

/* This is a
 * multi-line
 * comment

num = /* and can appear inside a statement */ 0

They are useful as an alternative to writing multiple-single line comments.

Documentation Comments

If you start a multi-line comment with two stars, '/**', then it will be a documentation comment.

 * A simple Sprite class,
 * to help show off the useful-ness
 * of documentation comments.
class Sprite
     * Increments the location by the values given.
    def move( x, y )
        // do something

They are useful for being a more formal version of a multi-line comment, and are typically used above variables, methods and classes.

Counted Comments

Comments in Quby are 'counted' or 'nested'. This means you can place a comment inside of a comment. For example:

 * /*
 *     A nested comment
 *  */
 * /**
 *    another nested comment
 *    /**
 *       with more nesting
 *     */
 *  */

This is useful as it allows you to comment out large blocks of code, without having to worry about any comments getting caught inside it, and messing this up.