将孩子从孩子身上移走
我在删除使用 JS 创建的对象的子对象的子对象时遇到问题。
基本上,一旦我创建了一个评论对象,我就会将Child(replyBox)附加到它上面。在回复框内有一个取消按钮,该按钮应该完全删除回复框。
这是代码:
function Comment(message){
var self = this;
var message = message;
var comment = document.createElement("li");
comment.id = "comment";
comment.style = "display: none;";
comment.textContent = message;
createButtons(comment);
var parent = document.getElementById("wall");
parent.appendChild(comment);
return comment;
}
function deleteComment(comment){
var parent = document.getElementById("wall");
parent.removeChild(comment);
}
function newReply(comment){
var buttons = comment.getElementsByTagName("input");
buttons.item(0).disabled="disabled";
var replyBox = document.createElement("div");
replyBox.id="replyBox";
var replyTxt = document.createElement("input");
replyTxt.type="text";
replyTxt.value="Write a reply";
replyTxt.onfocus = "if(this.value==this.defaultValue) this.value='';" ;
replyTxt.onblur="if(this.value=='') this.value=this.defaultValue;";
replyBox.appendChild(replyTxt);
createButtons(replyBox);
comment.appendChild(replyBox);
}
function createButtons(parent){
var button = document.createElement("input");
button.type = "submit";
if(parent.id=="comment"){
var reply = button.cloneNode();
reply.value = "reply";
reply.addEventListener("click", function(){newReply(parent)},false);
parent.appendChild(reply);
var deleteBtn = button.cloneNode();
deleteBtn.value = "delete";
deleteBtn.addEventListener("click", function(){deleteComment(parent)},false);
parent.appendChild(deleteBtn);
}
else{
var submitBtn = button.cloneNode();
submitBtn.value = "submit";
//reply.addEventListener("click", function(){newReply(parent)},false);
parent.appendChild(submitBtn);
var cancel = button.cloneNode();
cancel.value = "cancel";
cancel.addEventListener("click", function(){cancel(parent)},false);
parent.appendChild(cancel);
}
}
function cancel(replyBox){
replyBox.parentNode.removeChild(replyBox);
}
I am having trouble removing the child of a child of an object created using JS.
Basically once I create a comment object I appendChild(replyBox) to it. Inside the replyBox there is a cancel button which is supposed to completely delete the replyBox.
Here is the code :
function Comment(message){
var self = this;
var message = message;
var comment = document.createElement("li");
comment.id = "comment";
comment.style = "display: none;";
comment.textContent = message;
createButtons(comment);
var parent = document.getElementById("wall");
parent.appendChild(comment);
return comment;
}
function deleteComment(comment){
var parent = document.getElementById("wall");
parent.removeChild(comment);
}
function newReply(comment){
var buttons = comment.getElementsByTagName("input");
buttons.item(0).disabled="disabled";
var replyBox = document.createElement("div");
replyBox.id="replyBox";
var replyTxt = document.createElement("input");
replyTxt.type="text";
replyTxt.value="Write a reply";
replyTxt.onfocus = "if(this.value==this.defaultValue) this.value='';" ;
replyTxt.onblur="if(this.value=='') this.value=this.defaultValue;";
replyBox.appendChild(replyTxt);
createButtons(replyBox);
comment.appendChild(replyBox);
}
function createButtons(parent){
var button = document.createElement("input");
button.type = "submit";
if(parent.id=="comment"){
var reply = button.cloneNode();
reply.value = "reply";
reply.addEventListener("click", function(){newReply(parent)},false);
parent.appendChild(reply);
var deleteBtn = button.cloneNode();
deleteBtn.value = "delete";
deleteBtn.addEventListener("click", function(){deleteComment(parent)},false);
parent.appendChild(deleteBtn);
}
else{
var submitBtn = button.cloneNode();
submitBtn.value = "submit";
//reply.addEventListener("click", function(){newReply(parent)},false);
parent.appendChild(submitBtn);
var cancel = button.cloneNode();
cancel.value = "cancel";
cancel.addEventListener("click", function(){cancel(parent)},false);
parent.appendChild(cancel);
}
}
function cancel(replyBox){
replyBox.parentNode.removeChild(replyBox);
}
如果你对这篇内容有疑问,欢迎到本站社区发帖提问 参与讨论,获取更多帮助,或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱,如果其他用户或者作者回复了您的评论,将不能在第一时间通知您!
发布评论
评论(2)
哪个
取消
是哪个?您有一个名为cancel
的对象以及一个同名的函数。尝试重命名一个。Which
cancel
is which? You have an object calledcancel
as well as a function with the same name. Try renaming one.我在这里看到一个问题:
如果您将评论元素的所有 ID 设置为
comment
,DOM 可能会变得混乱。I see a problem here:
If you're setting all IDs of the comment elements to
comment
, the DOM may be getting confused.