Forum Discussion

SimonPerkins's avatar
SimonPerkins
Community Member
13 years ago

Can I prevent "NaN" from appearing in numerical entry?

Is there a way to do this?  Am using conditions to handle which numbers ARE allowed and to display an error if invalid numbers are entered.  But can't get it to stop letters etc from being entered/...
storyline 360
LucianaPiazza's avatar
LucianaPiazza
Staff
3 years ago

Thanks for sharing the solution that worked for you in this thread, Kevin! I'm sure it will be helpful to other community members that come across this post. 

Have a great day, and happy developing! ✨

RobSkeet's avatar
RobSkeet
Community Member
4 months ago

Hey Storyline Peeps, I built a Sum of Ratios calculator for a client. it's proprietary so I can't share it but wondered if there has been any non JS solutions for this.  essentially, the user plugs in lab results and it determines the sum of ratios.  It all works great until someone goes back into a field and deletes the entry or hits backspace. then all the calculations giv NaN because the deleted default is not an actual 0.  if you overwrite it with a zero, itt all works again but this is not very user friendly. BTW, I tried to add the JS that was suggested above and it just ignored it.  (Yes, even when published to Review) any new ideas?  is this something that Articulate is working on?  it's been 13 years since the first complaint.

 

  • Nedim's avatar
    Nedim
    Community Member
    4 months ago

    You may try below. But it all depends on your current setup. 

     

    var num = getVar("NumericEntry");

if (num === "" || isNaN(num)) {
    setVar("NumericEntry", 0);
}

     

    • RobSkeet's avatar
      RobSkeet
      Community Member
      4 months ago

      Woohoo!
      that worked like a charm.  I ran it right after the typed value set, and it captured it! thank you Nedim!

       

      • Nedim's avatar
        Nedim
        Community Member
        4 months ago

        Great!