If

       If sentences lets me examine one or more circumstances, and then acting in different way, depending on whether the circumstances fullfill some needs or not. An example:

(somebody fired at (x,y))
if there's a ship on (x,y)
  decrease the number of fields in this ship by 1
  write "Smack!"
else
  write "Plop"

Concept last updated: 24/09 2003.

Relations

is a kind of

Other sources

HTTP If img-tag

Libellus