javascript实现客户端兼容各浏览器创建csv并下载的方法

$("#radarDLBut").click(function(){
var data = [displayData["radar_chart"]["r_label"],displayData["radar_chart"]["r_default"]];
var csvContent = "data:text/csv;charset=utf-8,ufeff";
if (window.navigator.msSaveOrOpenBlob) {
csvContent = "ufeff";
}
data.forEach(function(infoArray, index){
dataString = infoArray.join(",");
csvContent += index < data.length ? dataString+ "n" : dataString;
});
if (window.navigator.msSaveOrOpenBlob) {
// if browser is IE
var blob = new Blob([decodeURIComponent(encodeURI(csvContent))],{
type: "text/csv;charset=utf-8;"
});
navigator.msSaveBlob(blob, 'subject.csv');
}else{
var encodedUri = encodeURI(csvContent);
var link = document.createElement("a");
link.setAttribute("href", encodedUri);
link.setAttribute("download", "subject.csv");
document.body.appendChild(link);
link.click();
}
});