Programming Forums > Web Development and Design > JavaScript and Client-Side Browser Scripting

forcerr · Mar 13th, 2006, 8:34 AM

so

if computer = "computer1" & "computer2" Then

wouldnt work?

Uday · Mar 13th, 2006, 8:37 AM

Quote:

and if its computer1 or 2 then it will do something

Use or

Uday · Mar 13th, 2006, 9:12 AM

<html>
<head>
</head>
<body>

<script type="text/vbscript">
dim comp
dim names(3)
comp="Jani"
names(0)="tove"
names(1)="Jani"

If comp=names(0) or comp=names(1) then
document.write(comp)
Else
document.write("not found")
end If

</script>

</body>
</html>

DaWei · Mar 13th, 2006, 10:24 AM

There's a big difference in the way you choose to express it. Distinguish between ORing (or ANDing) two values and testing the result against a third, and testing the result of whether or not EITHER (or BOTH) of the two values is equal to another.

if (C == A OR B) tests to see if C is equal to A ORed with B.
if ((C == A) OR (C == B)) test to see if C is equal to A or if C is equal to B.

In some languages, JS among them, == and = mean two different things. The precedence of operations in the language will determine the amount of parenthesization that is necessary for correctness.

Mar 13th, 2006, 9:12 AM	#13
Uday Programmer Join Date: Oct 2005 Location: India Posts: 30 Rep Power: 0	(Toggle Plain Text) <html> <head> </head> <body> <script type="text/vbscript"> dim comp dim names(3) comp="Jani" names(0)="tove" names(1)="Jani" If comp=names(0) or comp=names(1) then document.write(comp) Else document.write("not found") end If </script> </body> </html> <html> <head> </head> <body> <script type="text/vbscript"> dim comp dim names(3) comp="Jani" names(0)="tove" names(1)="Jani" If comp=names(0) or comp=names(1) then document.write(comp) Else document.write("not found") end If </script> </body> </html>

Mar 13th, 2006, 10:24 AM	#14
DaWei Resident Grouch Join Date: Jun 2005 Posts: 6,453 Rep Power: 10	There's a big difference in the way you choose to express it. Distinguish between ORing (or ANDing) two values and testing the result against a third, and testing the result of whether or not EITHER (or BOTH) of the two values is equal to another. if (C == A OR B) tests to see if C is equal to A ORed with B. if ((C == A) OR (C == B)) test to see if C is equal to A or if C is equal to B. In some languages, JS among them, == and = mean two different things. The precedence of operations in the language will determine the amount of parenthesization that is necessary for correctness. __________________ Abstraction doesn't make it impossible to write bad code; it makes it possible to write superior code. Contributor's Corner: Grumpy on C++ Exceptions DaWei on Pointers

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Mar 13th, 2006, 8:34 AM	#11
forcerr Newbie Join Date: Mar 2006 Posts: 8 Rep Power: 0	so if computer = "computer1" & "computer2" Then wouldnt work?

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Programming Forums > Web Development and Design > JavaScript and Client-Side Browser Scripting

More than one object in a string...