我真的需要帮助来清除按钮的 onclick。努力理解输入后如何清除数组名称。我最近才开始学习 Javascript,我对 Html 的了解也很一般。
function Add() {
//create a para obj
var newPara = document.createElement("p");
//create the text content
var input = document.getElementById("txtName").value;
var newText = document.createTextNode(input);
//attach the text to the para obj
newPara.appendChild(newText);
//attach the para obj to the div obj
var myDiv = document.getElementById("result");
myDiv.appendChild(newPara);
}
function Clear() {
var newPara = document.getElementById("tostring")
input = ""
newPara.value = 0;
}
function Count() {
var arrPara = document.getElementById("result").childNodes;
document.getElementById("result").removeChild(arrPara[Index.Count]);
}
<label>Name</label><input id="txtName" type="text" /><br />
<p id="displayNames"></p>
<button onclick="Add()">Add</button>
<!-- add the name to
an array and display the name on the paragraph -->
<button onclick="Clear()">Clear</button>
<!-- clear the
names in the array and clear the paragraph -->
<button onclick="Count()">Count</button>
<!-- count and
display the number of times the name has been entered -->
<div id="result"></div>
最佳答案
当您单击按钮时,它将清除输入值。
function Add() {
//create a para obj
var newPara = document.createElement("p");
//create the text content
var input = document.getElementById("txtName").value;
var newText = document.createTextNode(input);
//attach the text to the para obj
newPara.appendChild(newText);
//attach the para obj to the div obj
var myDiv = document.getElementById("result");
myDiv.appendChild(newPara);
document.getElementById('txtName').value = '';
}
function Clear() {
var newPara = document.getElementById("result")
newPara.textContent = '';
console.log(newPara)
newPara.value = 0;
}
function Count() {
var arrPara = document.getElementById("result").childNodes;
document.getElementById("result").removeChild(arrPara[Index.Count]);
}
<label>Name</label><input id="txtName" type="text" /><br />
<p id="displayNames"></p>
<button onclick="Add()">Add</button>
<!-- add the name to
an array and display the name on the paragraph -->
<button onclick="Clear()">Clear</button>
<!-- clear the
names in the array and clear the paragraph -->
<button onclick="Count()">Count</button>
<!-- count and
display the number of times the name has been entered -->
<div id="result"></div>
谢谢!
关于javascript - 如何修复我的清除按钮以删除阵列,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/59005092/