Questions tagged [node-csv-transform]

4 questions
0
votes
0 answers

New csv I create from another csv has less rows than the original

I am trying to create a new csv, with selective columns, from Original csv I have. I have successfully created csv but the issue is new csv has around 3.5K less rows than the original. I can't understand why this is happening. I have tried same code…
0
votes
1 answer

Best way to parse a CSV into a JS app, create, and let the user populate a new column?

I need to parse a CSV file to json (or array, still trying to search for the best method!), show the data to the user in a container, create a new column on that same csv for LABELLING, and letting the user populate it according to clicking some…
0
votes
1 answer

Google Sheets transform horizontal to vertical with gaps

I need a conversion of the individual cells for a wordpress plugin. I have a huge amount of data that I need to transform ! I had already tried it with TRANSFORM=(A1:A4) , but I do not get the result. And of course there must be a gap after the last…
0
votes
2 answers

how to multiply and skip rows piping streams using Node-CSV

I'd like to use Node CSV (https://csv.js.org/transform) to transform an CSV input stream of N wide rows with many columns into a CSV output stream of (m • N) narrower rows with fewer columns. The input and output files are large so I can't…
prototype
  • 7,249
  • 15
  • 60
  • 94