Please help with simple conditional equation

[toddh37975321]

I'm not familiar with coding languages at all, but I'm trying to make a conditional equation on an Acrobat form.  This is what I've pieced together by looking at other forums.  Could I have someone fix whatever is wrong with it? Please. There are just the 3 values from the "size" field that return one of the 3 values for the "size mod" field.

if (Size = "M") {

    Size Mod = "0";

}

else if (Size = "L") {

    Size Mod = "-1";

}

else if (Size = "S") {

    Size Mod = "1";

}

[try67]

There's quite a lot wrong with this code. Use this, instead (place it as the custom calculation script of the "Size Mode" field):

var size = this.getField("Size").valueAsString;
if (size == "M") {
    event.value = "0";
} else if (size == "L") {
    event.value = "-1";
} else if (size == "S") {
    event.value = "1";
}

[toddh37975321]

Acrobat accepted that equation. However, when I enter one of the 3 values for "Size", nothing happens to "Size Mod". Am I missing something?

[try67]

Check the JS Console (Ctrl+J) for error messages.

[toddh37975321]

Nothing there

[try67]

I'll need to see the file to be able to help you further.

Can you share it with us via Dropbox, Google Drive, Adobe Cloud, etc.?

[try67]

I got the file. Why did you edit the code I provided? There's a reason why I wrote it the way I did.

[toddh37975321]

I originally cop and pasted it, but when it was staying blank I tried tinkering with it to see what effects it’d have

[try67]

Use the code I provided as-is and it will work.
Note that JS is case-sensitive, though, so if you enter "s" into the Size field it won't work. Only "S".

[toddh37975321]

You tried it and it worked?

[try67]

Yes.