设置内容为空不显示

1.if(content == null || content == ""){
    //commonMsgAlert("请填写内容！");
  $("#content").css("display","none");
    return;
}
2.

{{? logDecorateContent.content!=null}}
<p class="decorate_text fontSize14">{{=logDecorateContent.content}}</p>
{{? }}