Write / read csv file in Js

Question

I have not very much experience with js but canyou tell me how to write, read and create csv files in js?

Answer 1

You cannot create, write or read csv file in JavaScript due to security concerns.

Answer 2

You must do this at backend side. You can send the data from client with ajax in json format to a webservice build in php (for example). In php you transform the data to csv format and force download the file.

http://php.net/manual/en/function.fputcsv.php

Answer 3

And what if we want to save the files at the client?