我有一个包含多列的表(对于这个问题我只做了两列)，我希望用户能够根据用户可以选择的选项通过索引搜索列。我有工作代码，但为了更改搜索选项，我必须为每个输入复制函数。
如何按索引搜索？如果用户选择像 (name) 这样的选项，则 javascript 函数会将其搜索的索引更改为 [0]。如果用户选择 (location)，该函数会将索引更改为 [1] 并搜索该列。
这可能吗？任何帮助，将不胜感激。
const searchName = document.getElementById('searchName');
const searchLoc = document.getElementById('searchLoc');
custSelect.addEventListener('click', () => {
if (custSelect.value == 'custname') {
searchName.style.display = 'block';
searchLoc.style.display = 'none';
} else {
searchName.style.display = 'none';
searchLoc.style.display = 'block';
}
});
// Search for customer, or search for location, index will change based on option selected.
function tableSearch(id, index) {
// Declare variables
var filter, input, table, tr, td, i;
input = document.getElementById(id);
filter = input.value.toUpperCase();
table = document.getElementById(id);
tr = table.getElementsByTagName('tr');
// Loop through all table rows, and hide those who don't match the search query
for (i = 0; i < tr.length; i++) {
td = tr[i].getElementsByTagName("td")[0]; // index will change based on option selected.
if (td) {
if (td.innerHTML.toUpperCase().indexOf(filter) > -1) {
tr[i].style.display = "";
} else {
tr[i].style.display = "none";
}
}
}
}<!DOCTYPE html>
<html>
<head>
<title>Test</title>
</head>
<body>
<div id="custDiv">
<div class="addBtns">
<input id="searchName" onkeyup="tableSearch('searchName','custList'[0])" type="text" placeholder="search name" />
<!-- this searches through the first index or [0] -->
<input id="searchLoc" onkeyup="tableSearch('searchLoc','custList'[1])" style="display: none;" type="text" placeholder="search location" />
<!-- this searches through the second index or [1] -->
<div id="custSelectDiv" style="width: 175px; height: 35px; max-height: 35px; margin: 0 auto;">
<select id="custSelect" style="position: absolute;">
<option value="custname">name</option> <!-- if user selects this, the corresponding input is displayed, which changes the index to search through -->
<option value="location">location</option> <!-- if user selects this, the corresponding input is displayed, which changes the index to search through -->
</select>
</div>
</div>
<table id="custListTop" contenteditable="false">
<tr>
<td style="border-top-left-radius: 5px;">Customers</td>
<td style="border-top-right-radius: 5px;">Main Location</td>
</tr>
</table>
<table id="custList" contenteditable="true">
<tr>
<td>josh</td>
<td>hawkins</td>
</tr>
<tr>
<td>hanna</td>
<td>big sandy</td>
</tr>
<tr>
<td>bonne</td>
<td>big sandy</td>
</tr>
<tr>
<td>thomas</td>
<td>big sandy</td>
</tr>
</table>
</div>
<script src="test.js"></script>
</body>
</html>最佳答案
这应该让你走上正轨
var table = document.getElementById('tab'),
col = document.getElementById('col'),
val = document.getElementById('val');
col.max = table.rows[0].cells.length - 1;
function search() {
var regex = new RegExp(val.value || '', 'i');
for (var i = table.rows.length; i-- > 1;) {
if (regex.test(table.rows[i].cells[+col.value].innerHTML)) {
table.rows[i].style.display = 'table-row';
} else
table.rows[i].style.display = 'none';
}
}table {
border-collapse: collapse;
}
table,
th,
td {
border: 1px solid;
}<label for="col">Column :</label>
<input type="number" id="col" placeholder="column" onkeyup="search()" min="0" step="1" />
<br>
<label for="val">Find :</label>
<input type="text" id="val" placeholder="cell" onkeyup="search()" />
<table id="tab">
<tr>
<th>Customers</th>
<th>Main Location</th>
</tr>
<tr>
<td>josh</td>
<td>hawkins</td>
</tr>
<tr>
<td>hanna</td>
<td>big sandy</td>
</tr>
<tr>
<td>bonne</td>
<td>big sandy</td>
</tr>
<tr>
<td>thomas</td>
<td>big sandy</td>
</tr>
</table>关于JavaScript 按索引搜索表格，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/47229603/