JSONToCSV

gistfile1.txt

(function(){
    var json = JSON.parse(document.getElementsByTagName('pre')[0].innerText);
    var result = JSON.parse(json.result);
    document.getElementsByTagName('BODY')[0].appendChild(document.createTextNode("Result to convert: " + JSON.stringify(result, null, 2)));

    // mock data
    result = {
        "result":[
            {
                "receiver_rank":1,
                "num_of_units":4,
                "lcp_receiver":"lcp/glm_0/lcp_chain/domain221_icnips/fall",
                "driver_rank":1,
                "min_depth":53.77552798,
                "units":"n8526s04a00299;n8526s05a00706;mc523217a000867;mc523217a00971",
                "lcp_driver":"lcp/glm_0/lcp_chain/domain263_dcaddr/rise",
                "slowest_test":"sl21_lea_x_r6glm_5"
            }]} ;

    convertToCSV(result.result,'result', true);

    function convertToCSV(jsonData, title, includeHeader) {
        var arrData = typeof jsonData != 'object' ? JSON.parse(jsonData) : jsonData;
        var CSV = "";

        //This condition will generate the Label/Header
        if (includeHeader) {
            CSV += Object.keys(arrData[0]).map(function(k){ return '"' + k.split('"').join('""') + '"'}).join(',') + '\r\n';
        }
        var rows = arrData.map(function(row){
            return Object.keys(row).map(function(k){ return row[k].toString().indexOf('"') > 0 ? '"' + row[k].split('"').join('""') + '"' : row[k]})
                .join(',');
        }).join('\r\n');
        CSV += rows + '\r\n';
        var fileName = title.replace(/ /g,"_");
        var uri = 'data:text/csv;charset=utf-8,' + encodeURIComponent(CSV);

        //this trick will generate a temp <a /> tag
        var link = document.createElement("a");
        link.href = uri;

        //set the visibility hidden so it will not effect on your web-layout
        link.style = "visibility:hidden";
        link.download = fileName + ".csv";

        //this part will append the anchor tag and remove it after automatic click
        document.body.appendChild(link);
        link.click();
        document.body.removeChild(link);
    }

})();