layui中出错Unexpected identifier

$.ajax({
    url:'__URL__/del'
    ,type:'post'
    ,data:{'id':data.id}
    beforeSend:function(){  //beforeSend前面少一个英文逗号,
        loading=layer.load(1,{shade:[0,3,'#000']})
    }
    ,success:function(data){
        layer.close(loading);
        if(data.code==1000){
            layer.msg(data.msg,{icon:1})           
        }else{
            layer.msg(data.msg,{icon:2})
        }
    }
})