jquery如何获取文件后缀

var file=$("input[name='file']").val(); var filename=file.replace(/.*(\/|\\)/, ""); var fileExt=(/[.]/.exec(filename)) ? /[^.]+$/.exec(filename.toLowerCase()) : '';

var location=$("input[name='file']").val(); var point = location.lastIndexOf("."); var type = location.substr(point); if(type==".jpg"||type==".gif"||type==".JPG"||type==".GIF"){ }

var arr = sFileName.split('.'); alert(arr[0]);

var name= sFileName.substr(0,sFileName.length-4)

var sFileName=sFile.replace(/.*(\/|\\)/, "");