Difference between revisions of "If"

If (edit)

29 bytes added , 04:45, 17 April 2006

m

→‎Combining Comparisons: who said parantheses don't work?

Anonymous user

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 |}
-Note that while multiple logical operators can be used, the operators are always evaluated from left to right regardless of parentheses. For example:
- <nowiki>if myVar1 == 1 && (myVar2 == 1 || myVar2 == 5)</nowiki>
+Note that "||" is evaluated before "&&", just like "*" is evaluated before "+". in normal algebra.
-Logically, this should say "if myVar is 1 AND myVar2 is either 1 or 5..." but in Oblivion, this will be evaluated as "if myVar is 1 AND myVar2 is 1, or if myVar2 is 5, ..." (thanks MaXiMiUS and JOG for testing this)
+If you want the && to be evaluated first, you have to include that part in parentheses. For example:
+ <nowiki>if myVar1 == 1 && myVar2 == 1 || myVar2 == 5</nowiki>
+This is true when MyVar1 = 1 AND myVar2 is either 1 or 5.
+ <nowiki>if (myVar1 == 1 && myVar2 == 1) || myVar2 == 5</nowiki>
+This is true when either myVar2 is 5 OR both, myVar1 and myVar2 are 1
 == Comparisons and Expressions ==