剔除多余的逗号

//剔除多余的逗号
function checkMulReaders(item) {
  var name = g(item), nArray = name.split(","), nValue = "";
  for (var i = 0, len = nArray.length; i < len; i++) { 
    if (nArray[i].replace(/(^\s+)|(\s+$)/g,"") != "") {
      nValue == "" ? nValue = nArray[i] : nValue += "," + nArray[i];
    }
  }
  s(item, nValue);
}
//jQuery剔除多余的逗号
(function($) {
  $.fn.checkUser = function (){
    function checkMulReaders(item){
      var name = g(item), nArray = name.split(","), nValue = "";
      for (var i = 0, len = nArray.length; i < len; i++) nArray[i].replace(/(^\s+)|(\s+$)/g, "") != "" && (nValue = nValue == "" ? nArray[i] : nValue + "," + nArray[i]);
      s(item, nValue);
    }
    this.each(function(){
      checkMulReaders(this.name);
    });
  };
})(jQuery);