我有一个表单,允许用户在单击按钮时添加textfield
我想在每个添加的 textfield
下面添加允许删除它的链接
这是脚本
<script>
function myFunction() {
let wrapper = document.getElementById("dynamic-question");
var input = document.createElement("input");
var del = document.createElement("button");
var div = document.createElement("div");
del.className = "del"
del.innerText = "X"
div.appendChild(input)
div.appendChild(del)
div.appendChild(document.createElement("br"));
div.appendChild(document.createElement("br"));
wrapper.appendChild(div)
}
document.getElementById("dynamic-question").addEventListener("click",function(e) {
if (e.target.className=="del") {
e.target.closest("div").remove()
}
})
</script>
这里是 html 代码
<form id="myForm" method="POST" action="./gett">
<label for="question"> Question </label> <br>
<input class="champ" type="textarea" name="question" id="question" value=""><br><br>
<label for="ans"> Answers </label> <br>
<input type="text" name="ans1" id="ans1" value=""><br><br>
<input type="text" name="ans2" id="ans2" value=""><br><br>
<div id="dynamic-question"></div>
<button type="button" onclick="myFunction()">Add proposition</button> <br><br>
<input type="submit" value="submit">
</form>
最佳答案
- 添加时键入=按钮
- e.preventDefault() 在按钮上删除或也使 type=button
- 使用一个容器来容纳输入、BR 和删除,一次性将它们全部删除
然后调用remove
function myFunction() {
let wrapper = document.getElementById("dynamic-question");
var input = document.createElement("input");
var del = document.createElement("button");
var div = document.createElement("div");
del.className = "del";
del.innerText = "X";
del.type="button";
div.appendChild(input);
div.appendChild(del);
div.appendChild(document.createElement("br"));
div.appendChild(document.createElement("br"));
wrapper.appendChild(div);
}
document.getElementById("dynamic-question").addEventListener("click",function(e) {
if (e.target.className=="del") {
e.preventDefault();
e.target.closest("div").remove();
}
})
<button type="button" onclick="myFunction()">Add</button>
<div id="dynamic-question"></div>
像这样单独 - 所有最近的 sibling 都需要删除,包括 BR
function myFunction() {
let wrapper = document.getElementById("dynamic-question");
var input = document.createElement("input");
var del = document.createElement("button");
del.className = "del";
del.type="buttpn"
del.innerText = "X";
wrapper.appendChild(input);
wrapper.appendChild(del);
wrapper.appendChild(document.createElement("br"));
wrapper.appendChild(document.createElement("br"));
}
document.getElementById("dynamic-question").addEventListener("click",function(e) {
if (e.target.className=="del") {
e.preventDefault();
e.target.previousElementSibling.remove(); // remove field
e.target.nextElementSibling.remove(); // remove br
e.target.nextElementSibling.remove(); // remove br
e.target.remove();
}
})
<button type="button" onclick="myFunction()">Add</button>
<div id="dynamic-question"></div>
关于javascript - 如何使用 dom 删除文本字段,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/56151710/