Question

Random Numbers from Array

Asked by: rgarimella

Hi Folks,

I have the following array

lettersArray = array(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z)

How do I return 5 random letters as a string from the array

I am looking for

dim randomLetters

randomLetters = "acdjwx"

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Asked On
2009-10-21 at 06:40:24ID24830530
Topic

Active Server Pages (ASP)

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Answers

 

by: wrmichaelPosted on 2009-10-21 at 06:56:47ID: 25623982


This is the code to get random numbers.

you will want to change it to allow the random number to be between 0 and size of array

dim mysize
dim randomLetter
mysize = ubound(array)

randomletter = ""
for a = 0 to 4
 
   randomletter = randomletter & lettersArray( int(rnd*mysize)+1 )

next a

make sense?

<% 
' begin random function
randomize
 
' random numbers is the varible that will contain a numeriv value
' between one and nine
random_number=int(rnd*9)+1
 
' write the random number out to the browser
response.write random_number
%>

                                              
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by: sybePosted on 2009-10-21 at 06:58:26ID: 25623994

<%
RandomString = ""
lettersArray = array(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z)
sChars = Join(lettersArray,"")
iLBound = 1
iUBound = Len(sChars)
Randomize(Timer)
RandomString = ""
For i = 1 to 5
    RandomString = RandomString & Mid(sChars, Clng((Clng(iUBound - iLBound) * Rnd) + Clng(iLBound)), 1)
Next
Response.write RandomString	
%>
 
 
Or with a function:
<%
lettersArray = array(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z)
Response.write RandomString(lettersArray , 5)
 
Function RandomString(ByVal aLetters, iLength)
    RandomString = ""
    sChars = Join(aLetters,"")
    iLBound = 1
    iUBound = Len(sChars)
    Randomize(Timer)
    RandomString = ""
    For i = 1 to iLength
        RandomString = RandomString & Mid(sChars, Clng((Clng(iUBound - iLBound) * Rnd) + Clng(iLBound)), 1)
    Next
End Function
%>

                                              
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by: dankangrPosted on 2009-10-21 at 07:00:25ID: 25624013

On Error GoTo 0
dim lettersArray
lettersArray = array("a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z")
dim returnString 
returnString=""
for i =1 to 5
	randomize
	returnString = returnString & lettersArray(cint(rnd()*25))
next
 
'Now you have in the returnString 5 random letters

                                              
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