JavaScript生成并下载csv文件

$(function(){
var title="栏位1,栏位2,栏位3";
var valueArray = "\n值11,值12,值13\n值21,值22,值23";
var data = title + valueArray;
var fileName =  "download.csv";
initCsvLink(data,fileName);

}); 


var initCsvLink = function(data,fileName){
data = "\ufeff"+data;  
var blob = new Blob([data], { type: 'text/csv,charset=UTF-8'});  
var csvUrl = URL.createObjectURL(blob);
var link = $("#mylink");
link.attr("href",csvUrl); 
link.attr("download",fileName); 
}