Complete called two times

[acourtiol]

Hello,

I'm having the following issue.

When I call papaparse like this:

Papa.parse(data.toString('utf8'), {
    header: true,
    skipEmptyLines: true,
    complete: function(data) {
         console.log(data);
}});

With the following string:

Identifiant,Nom
1,Succes commerciaux
2,Strategie commerciale
3,Synergies
4,Efficacite operationnelle
5,Numerique
6,3 questions a

The complete function get called two times in a row with the following data:

{ data: 
   [ { Identifiant: '1', Nom: 'Succes commerciaux' },
     { Identifiant: '2', Nom: 'Strategie commerciale' },
     { Identifiant: '3', Nom: 'Synergies' },
     { Identifiant: '4', Nom: 'Efficacite operationnelle' },
     { Identifiant: '5', Nom: 'Numerique' },
     { Identifiant: '6', Nom: '3 questions a' } ],
  errors: 
   [ { type: 'Delimiter',
       code: 'UndetectableDelimiter',
       message: 'Unable to auto-detect delimiting character; defaulted to \',\'',
       row: undefined } ],
  meta: 
   { delimiter: ',',
     linebreak: '\n',
     aborted: false,
     truncated: false,
     fields: [ 'Identifiant', 'Nom' ] } }

I parse multiple files but I'm having the issue only on this one.

Thanks.

[mholt]

This is a known issue. I'm mobile right now and can't remember which number, (and my Internet is down) but take a look at the open issues and you will find the previous discussion.

[acourtiol]

@mholt Thanks for the answer, I searched through the search tool but didn't find anything like that. I'll double check.

[AVermeij]

I seem to be having the exact same problem: as soon as I load up a second file in an input file element, PapaParse somehow calls the complete two times. My code:

$('input').change(function(event) {
  file = event.target.files[0];
});

Papa.parse(file, {
        header: true,
        dynamicTyping: true,
        skipEmptyLines: true,
    encoding: 'UTF-8',
    beforeFirstChunk: function(chunk) {
        return chunk.replace(regex, '');
    },
        complete: function(results) {
               //doing some stuff with results.data
        }

Tried to find the related issue, but couldn't locate it. Would you be so kind to refer me to it? Thanks for your great work :-)

[AVermeij]

I just found out that this has nothing to do with Papa in the end ;-). My form was submitting multiple times because I didn't detach it before attaching it. This fixed it:

$('#form').off('submit').on('submit', function(e) {
// do stuff
}

Hope this helps anyone with the same issue!

[renak]

I'm having the same issue. I'm starting the Papa.parse on file input change event. The chunk function is only run once (testing with a small file), but the complete function is run twice.

[bluej100]

I'm having trouble reproducing this. Are you guys running 4.1.2?

[renak]

Yeah, running 4.1.2. I just realized that this only happens for me when parser.abort() is called from within the chunk function.

[mholt]

I'll try to take a look at this soon. (got quite the backlog!)

[themeteorchef]

Any update on this?

[derouck]

i'm seeing this issue as well.

[mholt]

I'm swamped with another project. Anyone is welcome to issue a PR to fix it.

[repjackson]

I'm seeing this. The parsing runs once (confirmed by a console.log) but the complete function runs twice. I'll see what I can find in the code. @mholt Any suggests where to look would be appreciated. And thanks for the great package, it's a huge help for my project.

[mholt]

@repjackson Sorry, I'm super busy right now with other things, but using the debugging tools and some console.logs you or someone can probably pinpoint the cause without too much trouble!

[repjackson]

Ok thank you for the quick response.

On 3/10/16, Matt Holt notifications@github.com wrote:

@repjackson Sorry, I'm super busy right now with other things, but using the debugging tools and some console.logs you or someone can probably pinpoint the cause without too much trouble!

---

Reply to this email directly or view it on GitHub: https://github.com/mholt/PapaParse/issues/231#issuecomment-195170325

[matteolefthanders]

i'm seeing this issue right now

[repjackson]

I got around this by doing:

                secondIteration = false
                Papa.parse csvToParse,
                    header: true
                    complete: (results, file) ->
                        if secondIteration then return
                        else
                         // code
                            secondIteration = true

[gabegorelick]

See https://github.com/mholt/PapaParse/pull/479#issuecomment-379918392 for a partial solution that can be expanded if people are still experiencing this.