This Javascript library helps converting CSV to JSON and JSON to CSV
npm install --save csv-json-convert
const converter = require('csv-json-convert');
// Convert CSV string to JSON data array.
converter.csvToJson(CSV_string, delimiter);
// Convert data array to CSV string
converter.jsonToCsv(Data_array, delimiter);
// Delimiter can be ';' or ',' or '\t' or '|' or '~'
npm test