javascript - 如何覆盖表中的数据?
问题描述
单击链接时尝试创建具有数据属性的表
问题很可能出在这段代码中
我不明白如何重写表中的数据。现在数据被顺序添加到表中。
我的代码 - https://jsfiddle.net/347x8bwq/
(function() {
'use strict';
function createTable() {
let link = document.querySelectorAll('.link');
let block = document.querySelector('.block');
let blockTable = document.querySelector('.table');
for (let i = 0; i < link.length; i++) {
let links = link[i];
links.addEventListener('click', function(e) {
e.preventDefault();
let linkData = this.dataset;
for (let j in linkData) {
let tableRow = document.createElement('tr');
let arr = linkData[j].split('|');
for (let k = 0; k < arr.length; k++) {
let tableCol = document.createElement('td');
tableCol.innerHTML = arr[k];
tableRow.appendChild(tableCol);
}
blockTable.appendChild(tableRow);
}
});
}
}
createTable();
期望的行为 - 每次单击链接时 - 创建了一个新表
解决方案
在将您tableRow
的附加到之前blockTable
,请清除其innerHTML
.
(function() {
'use strict';
function createTable() {
let link = document.querySelectorAll('.link');
let block = document.querySelector('.block');
let blockTable = document.querySelector('.table');
for (let i = 0; i < link.length; i++) {
let links = link[i];
links.addEventListener('click', function(e) {
e.preventDefault();
let linkData = this.dataset;
blockTable.innerHTML = "";
for (let j in linkData) {
let tableRow = document.createElement('tr');
let arr = linkData[j].split('|');
for (let k = 0; k < arr.length; k++) {
let tableCol = document.createElement('td');
tableCol.innerHTML = arr[k];
tableRow.appendChild(tableCol);
}
blockTable.appendChild(tableRow);
}
});
}
}
createTable();
})();
.table {
width: 100%;
table-layout: fixed;
}
td {
border: 1px solid #ccc;
}
.link {
display: block;
margin-bottom: 5px;
}
.block {
padding: 25px;
border: 1px solid #000;
}
<a href="#" class="link" data-title="Атрибут1|Title" data-subtitle="Атрибут2|Subtitle" data-num="Атрибут3|1234">Link 1</a>
<a href="#" class="link" data-text="Атрибут1|Title" data-online="Атрибут2|off">Link 2</a>
<a href="#" class="link" data-text="Атрибут55|Title text" data-online="Атрибут02|Bubu">Link 3</a>
<div class="block">
<table class="table">
<tr>
<td>Атрибут1</td>
<td>Title</td>
</tr>
<tr>
<td>Атрибут2</td>
<td>Subtitle</td>
</tr>
<tr>
<td>Атрибут3</td>
<td>1234</td>
</tr>
</table>
</div>