Javascript function to convert JSON to CSV

JSONToCSVConverter

export function JSONToCSVConvertor(JSONData, fileName, ShowLabel, errorCallback) {
    var arrData = typeof JSONData != 'object' ? JSON.parse(JSONData) : JSONData;
    var CSV = '';

    if (ShowLabel) { //This condition will generate the Label/Header
        var row = "";
        for (var index in arrData[0]) { //This loop will extract the label from 1st index of on array
            if (arrData[0].hasOwnProperty(index)) {
                row += index + ','; //Now convert each value to string and comma-seprated
            }
        }
        row = row.slice(0, -1);
        CSV += row + '\r\n'; //append Label row with line break
    }


    for (var i = 0; i < arrData.length; i++) { //1st loop is to extract each row
        var row_1 = "";
        for (var index_1 in arrData[i]) {
            if (arrData[i].hasOwnProperty(index_1)) {
                row_1 += '"' + arrData[i][index_1] + '",';
            }
        }
        row_1.slice(0, row_1.length - 1);
        CSV += row_1 + '\r\n'; //add a line break after each row
    }

    if (CSV == '') {
        errorCallback("Invalid data");
    }


    var link = (function () { //this will generate a temp "a" tag
        var l = document.createElement("a");
        l.id = "lnkDwnldLnk";
        document.body.appendChild(l);
        return $("#lnkDwnldLnk");
    }());

    function createObjectURL(file) {
        if (window.URL && window.URL.createObjectURL) {
            return window.URL.createObjectURL(file);
        } else if (window.webkitURL) {
            return window.webkitURL.createObjectURL(file);
        } else {
            errorCallback("CreateObjectURL not supported by the browser");
        }
    }

    var blob = new Blob([CSV], {type: 'text/csv'});
    var csvUrl = createObjectURL(blob);
    var filename = fileName + '.csv';
    link.attr({
        'download': filename,
        'href': csvUrl
    });

    link[0].click();
    link.remove();
}