Write a string containing commas and double quotes to CSV

Question

I\'m trying to produce a Google Shopping feed of 30,000+ items in NetSuite, a CRM system that runs server-side JavaScript that it calls Suitescript 2.0. Essentially, it\'s j

Answer 1

I use this simple function to convert an string[][] to a csv file. It quotes the cell, if it contains a ", a , or other whitespace (except blanks):

/**
 * Takes an array of arrays and returns a `,` sparated csv file.
 * @param {string[][]} table
 * @returns {string}
 */
export function toCSV(table: string[][]) {
    return table
        .map(row =>
            row
                .map(cell => {
                    // We remove blanks and check if the column contains
                    // other whitespace,`,` or `"`.
                    // In that case, we need to quote the column.
                    if (cell.replace(/ /g, '').match(/[\s,"]/)) {
                        return '"' + cell.replace(/"/g, '""') + '"';
                    }
                    return cell;
                })
                .join(',')
        )
        .join('\n');
}