目前陷入困境。試圖創建一個表單,其中可以動態地添加和刪除div元素,到目前爲止一直到DYNAMICALLY ADD,問題是如果我嘗試刪除div,只有最後創建的獲取刪除,而其他人仍然(不包括父div )KINDLY ASSIST。動態添加和刪除與div div div
<!doctype html>
<html lang="en">
<head>
</head>
<body>
<div id="box">
<div id='div' style="background: #99CCFF; height: 100px; width:300px" >
<p>Degree Level: <select id="dropdown">
<option value="Doctorate Degree">Doctorate Degree</option>
<option value="Masters">Masters</option>
<option value="Bachelors Degree">Bachelors Degree</option>
<option value="SSCE">SSCE</option>
</select></p>
<label for="firstname">School Name</label>
<input type="text" placeholder="Your Role"">
<label for="from">From</label>
<input type="text" id="from" name="from">
<br>
<label for="to">to</label>
<input type="text" id="to" name="to">
</div>
</div>
<div>
<button id="submit1">Add new div</button>
<input type="button" value="Remove Element"
onClick="removeElement('box','div');">
</div>
</body>
<script>
var box = document.getElementById('box'),
template = box.getElementsByTagName('div'),
template = template[0];
var counter = 1;
submit1.onclick = function() {
var new_field = template.cloneNode(true);
new_field.id = new_field.id + counter++
console.log(new_field.id)
box.appendChild(new_field);
return false;
};
</script>
<script>
function removeElement(boxDiv, divDiv){
if (divDiv == boxDiv) {
alert("The parent div cannot be removed.");
}
else if (document.getElementById(divDiv)) {
var div = document.getElementById(divDiv);
var box = document.getElementById(boxDiv);
box.removeChild(div);
}
else {
alert("Child div has already been removed or does not exist.");
return false;
}
}
你的問題是與線'否則,如果該片段(的document.getElementById(divDiv))'。這永遠不會成立,因爲你實際上並沒有比較任何東西。你可能在尋找'else if(template)'。 –