;Task:
Show all ways to include text in a language source file 
that's completely ignored by the compiler or interpreter.


;Related tasks:
*   [[Documentation]]
*   [[Here_document]]


;See also:
*   [https://en.wikipedia.org/wiki/Comment_(computer_programming) Wikipedia]
* &nbsp; [http://xkcd.com/156 xkcd] (Humor: hand gesture denoting <code>//</code> for "commenting out" people.)
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