Elegant Error Handling Code Samples

csv-to-messages-02.js

function csvToMessages(csvData) {
    const csvRows      = splitCSVToRows(csvData);
    const headerFields = csvRows.map(_.head).map(splitFields);
    const dataRows     = csvRows.map(_.tail);

    // How will we pass headerFields and dataRows to
    // processRows() ?
    const funcInEither = headerFields.map(processRows);
}