问如何使用JavaScript/JQuery在CSV标题中添加注释

EN

var data = [
       ['123'],
       ['346'],
       ['789'],
       ['Test1'],
       ['Test2']
    ];


    function download_csv() {
        var csv = 'ID\n';
        data.forEach(function(row) {
                csv += row.join(',');
                csv += "\n";
        });

        console.log(csv);
        var hiddenElement = document.createElement('a');
        hiddenElement.href = 'data:text/csv;charset=utf-8,' + encodeURI(csv);
        hiddenElement.target = '_blank';
        hiddenElement.download = 'test.csv';
        document.getElementById('container').appendChild(hiddenElement);
        hiddenElement.click();
    }

<button onclick="download_csv()">Download CSV</button>
<div id="container" style="display:none;"></div>