Adding frontmatter values with dataviewjs gives me a really long decimal number -> how to round?

[ReaderGuy42]

I'm having dataviewjs add the values for a frontmatter variable, the hours listened of audiobooks. For some reason, I'm getting a really long decimal number, like x.499999998, even though there is no such value in any of my notes. I only use a single decimal place.

Is there a way to have dataview round to a single decimal? I've looked through the documentation, but when I try using round(number, [digits]), it tells me that round isn't defined.

Thanks!

[mnvwvnm]

Can you provide an example of your frontmatter field with the inline dvjs query?

[ReaderGuy42]

Yeah sure: the frontmatter variable is e.g. Hours: 5

And the dataview query:

let hoursum = 0;
	for(let i = 0; i < dv.pages('"Book Log/2022"').length;i++) {
     if(dv.pages('"Book Log/2022"')[i].Hours) {
       hoursum += dv.pages('"Book Log/2022"')[i].Hours;
         }
   }

dv.paragraph("I've listened to " + hoursum + " hours.")

[mnvwvnm]

ok.
part of the code I don't understand 🙂 (my fault, js limitations).
But I think you can solve your round with this:

...
dv.paragraph("I've listened to " + hoursum.toFixed(1) + " hours.")

[ReaderGuy42]

I'm just recycling old code I've found in my vault or online, so I don't understand most of it either haha.

The toFixed(1) works perfectly, thank you!!