你已經設置爲顯示名稱 - 值對,其中每個名字被包含在<th>...</th>
及其相應的值是包含在<td>...</td>
表。
所以一個方法,這是簡單的文檔對象模型導航,使用:
getElementsByTagName('th')
getElementsByTagName('td')
var table = document.getElementsByTagName('table')[0];
var button = document.getElementsByTagName('button')[0];
var summary = document.getElementsByClassName('summary')[0];
var searchedFor = summary.getElementsByTagName('p')[0];
var correspondingResult = summary.getElementsByTagName('p')[1];
function displayResult() {
var returnValue = '';
var searchString = document.getElementsByTagName('input')[0].value;
var lowerCaseSearchString = searchString.toLowerCase();
var tableRows = document.getElementsByTagName('tr');
for (var i = 0; i < tableRows.length; i++) {
var name = tableRows[i].getElementsByTagName('th')[0].textContent.toLowerCase();
if (name === lowerCaseSearchString) {
returnValue = tableRows[i].getElementsByTagName('td')[0].textContent;
}
if (returnValue === '') {
returnValue = 'No Matches';
}
}
searchedFor.textContent = 'You searched for... ' + '"' + searchString + '"';
correspondingResult.textContent = 'The corresponding result is... ' + '"' + returnValue + '"';
}
button.addEventListener('click',displayResult,false);
table, .search-panel {
display: inline-block;
vertical-align: top;
margin-right: 24px;
}
table {
border: 2px solid rgb(127,127,127);
}
th, td {
padding: 12px;
}
th {
text-align: left;
background-color: rgb(191,191,191);
}
th::after {
content:':';
}
.search-results p span {
font-weight:bold;
}
<table>
<tbody>
<tr>
<th>Name</th>
<td>Foo</td>
</tr>
<tr>
<th>Age</th>
<td>20</td>
</tr>
</tbody>
</table>
<div class="search-panel">
<form>
<input type="text" placeholder="Enter your string here..." value="" />
<button type="button">Search for String</button>
</form>
<div class="summary">
<p>You searched for... </p>
<p>The corresponding result is... </p>
</div>
</div>
不要THEI訪問元素內容。使用'id'或'class'屬性將它們正確標記爲您的目標。 – haim770
是的,我知道。但我必須以這種方式進行搜索。你能幫我 – shoaib