Randomize  
Description
Seeds the ColdFusion random number generator with an integer number. Seeding the generator helps ensure that the Rand function generates highly random numbers.
 
Returns
A non-random decimal number, in the range 0 - 1.
 
Category
Mathematical functions
 
Function syntax
Randomize(number)
 
See also
Rand, RandRange
 
Parameters
 
Parameter      Description
number A number
 
Usage
Call this function before calling Rand. Although this function returns a decimal number, it is not a random number.
 
Example
<h3>Randomize Example</h3>
<p>Call Randomize to seed the random number generator. This helps 
to ensure the randomness of numbers generated by Rand.
<cfif IsDefined("FORM.myRandomInt")>
   <cfif IsNumeric(FORM.myRandomInt)>
     <cfoutput><p><b>Seed value is #FORM.myRandomInt#</b>
      </cfoutput><br>
    <cfset r = Randomize(FORM.myRandomInt)>
     <cfloop index = "i" from = "1" to = "10" step = "1">
        <cfoutput>Next random number is #Rand()#</cfoutput><br>
     </cfloop><br>
   <cfelse>
      <p>Please enter a number.
   </cfif>
</cfif>
<form action = "randomize.cfm">
<p>Enter a number to seed the randomizer:
<input type = "Text" name = "MyRandomInt">
<p><input type = "Submit" name = "">
</form>
number  
A number