Subj : Question about string.trim()
To : echicken
From : KenDB3
Date : Thu Sep 08 2016 12:32 pm
Re: Question about string.trim()
By: echicken to KenDB3 on Thu Sep 08 2016 11:39 am
>> So, my first question is, is the trim() function valid in JavaScript
>> 1.8.5? I'm guessing it is because it's been working in
ec> Yes, it's a valid method on a String object.
Awesome, thank you.
>> What I find interesting is that the error flagged on a trim() on line
>> 275, but was OK with the trim() on line 270: timestamp.trim().
ec> In this case 'timestamp' is really just another String, since you're just
ec> grabbing the text from the feed and not turning it into a Number or Date
ec> object, so that makes sense.
ec> My best guess is that the 'solarflux' value was absent when this person
ec> fetched the feed, or that they failed to fetch the feed altogether. On
ec> line 80, if 'solardata.solarflux' is undefined, 'sfi' gets set to 0, a
ec> Number, which does not have the '.trim()' method. Wrap that 0 in quotes on
ec> line 80 and this particular problem should go away.
ec> Also, if you wanted to, you could also shorten things a bit by doing
ec> something like:
ec> var sfi = solardata.solarflux || '0';
ec> var sfi_int = parseInt(sfi);
ec> var ai = solardata.aindex || 'No Data';
ec> // etc.
ec> var sfi = solardata.solarflux;
ec> if (sfi == undefined) {
ec> var sfi = '0';
ec> }
You make it look so easy! Thanks man, that's incredibly helpful, I really
appreciate it. I'm learning lots playing with this stuff. I had a feeling, but
I wasn't sure.
