使用 JavaScript 在 div 中添加/删除 HTML
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Add/remove HTML inside div using JavaScript
提问by Daniel Tovesson
I want to be able to add multiple rows to a div and also removing them. I have a '+' button at the top of the page which is for adding content. Then to the right of every row there is a '-' button that's for removing that very row. I just can't figure out the javascript code in this example.
我希望能够将多行添加到 div 并删除它们。我在页面顶部有一个“+”按钮，用于添加内容。然后在每一行的右侧有一个“-”按钮，用于删除该行。我就是想不通这个例子中的 javascript 代码。
This is my basic HTML structure:
这是我的基本 HTML 结构：
<input type="button" value="+" onclick="addRow()">
<div id="content">
</div>
This is what I want to add inside the content div:
这是我想在内容 div 中添加的内容：
<input type="text" name="name" value="" />
<input type="text" name="value" value="" />
<label><input type="checkbox" name="check" value="1" />Checked?</label>
<input type="button" value="-" onclick="removeRow()">
回答by Austin Brunkhorst
You can do something like this.
你可以做这样的事情。
function addRow() {
const div = document.createElement('div');
div.className = 'row';
div.innerHTML = `
<input type="text" name="name" value="" />
<input type="text" name="value" value="" />
<label>
<input type="checkbox" name="check" value="1" /> Checked?
</label>
<input type="button" value="-" onclick="removeRow(this)" />
`;
document.getElementById('content').appendChild(div);
}
function removeRow(input) {
document.getElementById('content').removeChild(input.parentNode);
}
回答by Hoffmann
To my most biggest surprise I present to you a DOM method I've never used before googeling this question and finding ancient insertAdjacentHTMLon MDN(see CanIUse?insertAdjacentHTMLfor a pretty green compatibility table).
最令我惊讶的是，我向您展示了一个我从未使用过的 DOM 方法，之前我在谷歌搜索这个问题并insertAdjacentHTML在MDN上找到了古老的方法（请参阅CanIUse?insertAdjacentHTML以获得一个非常绿色的兼容性表）。
So using it you would write
所以使用它你会写
function addRow () {
document.querySelector('#content').insertAdjacentHTML(
'afterbegin',
`<div class="row">
<input type="text" name="name" value="" />
<input type="text" name="value" value="" />
<label><input type="checkbox" name="check" value="1" />Checked?</label>
<input type="button" value="-" onclick="removeRow(this)">
</div>`
)
}
function removeRow (input) {
input.parentNode.remove()
}<input type="button" value="+" onclick="addRow()">
<div id="content">
</div>回答by Arun
You can use this function to add an child to a DOM element.
您可以使用此函数向 DOM 元素添加子元素。
function addElement(parentId, elementTag, elementId, html)
{
// Adds an element to the document
var p = document.getElementById(parentId);
var newElement = document.createElement(elementTag);
newElement.setAttribute('id', elementId);
newElement.innerHTML = html;
p.appendChild(newElement);
}
function removeElement(elementId)
{
// Removes an element from the document
var element = document.getElementById(elementId);
element.parentNode.removeChild(element);
}
回答by Arun
To remove node you can try this solution it helped me.
要删除节点，您可以尝试此解决方案，它对我有帮助。
var rslt = (nodee=document.getElementById(id)).parentNode.removeChild(nodee);
回答by Catalin Matei
Another solution is to use getDocumentByIdand insertAdjacentHTML.
另一种解决方案是使用getDocumentById和insertAdjacentHTML。
Code:
代码：
function addRow() {
const div = document.getElementById('content');
div.insertAdjacentHTML('afterbegin', 'PUT_HTML_HERE');
}
Check here, for more details: Element.insertAdjacentHTML()
在这里查看更多详细信息： Element.insertAdjacentHTML()
回答by Aarif Qureshi
please try following to generate
请尝试以下生成
function addRow()
{
var e1 = document.createElement("input");
e1.type = "text";
e1.name = "name1";
var cont = document.getElementById("content")
cont.appendChild(e1);
}
回答by dashme
make a class for that button lets say :
为该按钮创建一个类让我们说：
`<input type="button" value="+" class="b1" onclick="addRow()">`
your js should look like this :
你的 js 应该是这样的：
$(document).ready(function(){
$('.b1').click(function(){
$('div').append('<input type="text"..etc ');
});
});
回答by Aezaz Desai
<!DOCTYPE html>
<html>
<head>
<title>Dynamical Add/Remove Text Box</title>
<script language="javascript">
localStorage.i = Number(1);
function myevent(action)
{
var i = Number(localStorage.i);
var div = document.createElement('div');
if(action.id == "add")
{
localStorage.i = Number(localStorage.i) + Number(1);
var id = i;
div.id = id;
div.innerHTML = 'TextBox_'+id+': <input type="text" name="tbox_'+id+'"/>' + ' <input type="button" id='+id+' onclick="myevent(this)" value="Delete" />';
document.getElementById('AddDel').appendChild(div);
}
else
{
var element = document.getElementById(action.id);
element.parentNode.removeChild(element);
}
}
</script>
</head>
<body>
<fieldset>
<legend>Dynamical Add / Remove Text Box</legend>
<form>
<div id="AddDel">
Default TextBox:
<input type="text" name="default_tb">
<input type="button" id="add" onclick="myevent(this)" value="Add" />
</div>
<input type="button" type="submit" value="Submit Data" />
</form>
</fieldset>
</body>
</html>
