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Tutorials Tutorials » Actionscripting/Basic

Categories Understanding Operators
Author: Eddie Carroll | Website: http://www.flashkit.com |

 
Page 4
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Logical operators allow us to add an element of complexity to our expressions. While they may sound confusing at first, once you get a feel for them they will become a powerful ally that will make your actionscript simpler and faster.

Logical Operators

and
not
or
The Logical AND
The Logical NOT
The Logical OR

The AND Operator
The logical AND is used when you want an event to occur when two statements (conditions) are BOTH true. A plain english example would be; if my bank account has $100 AND the day is Friday then I can go partying! Let's now look at an actionscript example:

On (Release)
 If ((firstname eq "eddie")  and  (password eq "qwerty"))
 Set Variable: "status" = "Access Granted"
 Go to and Play ("membersonly")
 Else
 Set Variable: "status" = "Access Denied"
 End If
End On

As you can see both the username and the password have to be correct before access is granted. Below I've created a table outlining all the different combinations you can have when using the AND operator. As you can see there is only one scenario that evaluates TRUE.

Statement #1
True
True
False
False
Statement #2
True
False
True
False
#1 AND #2
True
False
False
False

Now lets look at the OR operator.

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» Level Basic

Added: : 2000-09-14
Rating: 8.76 Votes: 62
Hits: 5049
» Author
Eddie is the Content Editor at Flashkit.com and is actually a sentient Gateway Solo 2150xl notebook that suffers from acute lysdexia and caffeine addiction. He is carried on the shoulders of a semi-autonomous human called "Body".
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