How To Check Or Test If a Value Is Integer | Coldfusion How Tos

Thursday, October 07, 2010

Checking Or Testing If a Value / Variable Is Integer (number) In Coldfusion

check test variable value if integer number
For all of you beginner coldfusion programmer there who are wondering on how you can check or test if a value or your variable is a numeric or not.

This is of course is important because we do not want a wrong data type to use in our where clause with our cfquery right?

This is actually very easy, just use:

#isnumeric(value)#

With isnumeric function you can test if a value is an integer or not, here is a basic example.

cfset myvariable="12345"

cfif #isnumeric(myvariable)# eq true
cfset result="variable is numeric"
cfelse
cfset result="variable is not numeric"
/cfif

#result#


Of course we would put a greater than and less than sign at every start and end each line, but I know you can understand the purpose of this code.

Also, I tried doing

cfif #isnumeric(myvariable)# eq "true"

and the result is still the same.

Well, that's all for now, hope this helped you.

Happy programming and good luck to you project!

3 comments :

  1. AnonymousFebruary 3, 2011 at 1:24 PM

    Wrong. isNumeric doesn't check to see if it's an integer; it checks to see if it's a number. So if you send in 12.5783, it will return true.

    ReplyDelete
  2. kapitanFebruary 3, 2011 at 1:49 PM

    This is admin and thank you for the correction.
    it's more of a slip of the tongue I guess.

    ReplyDelete
  3. AnonymousAugust 9, 2016 at 2:32 AM

    & lt; gives (without the space) will give you the left angle bracket.
    <cfloop list="2.123,a,4" index="myVal">
    <cfif !isNumeric(myVal)> ...error code for not numeric

    <cfelseif myVal neq int(myVal)> ...error code for not integer

    <cfelse>is integer

    </cfif>
    </cfloop>

    ReplyDelete

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