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Understanding Operators
Author: Eddie Carroll
| Website: http://www.flashkit.com |
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
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The Logical AND
The Logical NOT
The Logical OR
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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
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Statement #2
True
False
True
False
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#1 AND #2
True
False
False
False
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Now lets look at the OR operator.
| » Level Basic |
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Added: : 2000-09-14
Rating: 8.76 Votes: 62
Hits: 5049
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| » Author |
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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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