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

   Wikipedia
   xkcd (Humor: hand gesture denoting // for "commenting out" people.)


x=1; // comment ala C++
x=2; # ala scripts
/* ala C, these comments are parsed (also ala C) */
/* can /* be */ nested */
#if 0
  also ala C (and parsed)
#endif
#<<<#
  "here" comment, unparsed
#<<<#