DataTables

HTML

<link rel="stylesheet" href="https://cdn.datatables.net/r/dt/dt-1.10.9/datatables.min.css">
<script src="https://cdn.datatables.net/r/dt/dt-1.10.9/datatables.min.js"></script>
<h3>jQuery DataTables: Filter columns in the header</h3>
<a href="https://www.gyrocode.com/articles/tag/jquery-datatables/">See more articles about jQuery DataTables</a> on <a href="https://www.gyrocode.com/articles/">Gyrocode.com</a><hr>

<table id="example" class="display" cellspacing="0" width="100%">
    <thead>
        <tr>
            <th>Name</th>
            <th>Position</th>
            <th>Office</th>
            <th>Age</th>
            <th>Start date</th>
            <th>Salary</th>
        </tr>
        <tr>
            <th>Name</th>
            <th>Position</th>
            <th>Office</th>
            <th>Age</th>
            <th>Start date</th>
            <th>Salary</th>
        </tr>
    </thead>
    <tfoot>
        <tr>
            <th>Name</th>
            <th>Position</th>
            <th>Office</th>
            <th>Age</th>
            <th>Start date</th>
            <th>Salary</th>
        </tr>
    </tfoot>
    <tbody>
        <tr>
            <td>Tiger Nixon</td>
            <td>System Architect</td>
            <td>Edinburgh</td>
            <td>61</td>
            <td>2011/04/25</td>
            <td>$320,800</td>
        </tr>
        <tr>
            <td>Garrett Winters</td>
            <td>Accountant</td>
            <td>Tokyo</td>
            <td>63</td>
            <td>2011/07/25</td>
            <td>$170,750</td>
        </tr>
        <tr>
            <td>Ashton Cox</td>
            <td>Junior Technical Author</td>
            <td>San Francisco</td>
            <td>66</td>
            <td>2009/01/12</td>
            <td>$86,000</td>
        </tr>
        <tr>
            <td>Bradley Greer</td>
            <td>Software Engineer</td>
            <td>London</td>
            <td>41</td>
            <td>2012/10/13</td>
            <td>$132,000</td>
        </tr>
  ...

JavaScript

$(document).ready( function () { 
    // Setup - add a text input to each header cell
    $('#example thead tr:eq(1) th').each( function () {
        var title = $('#example thead tr:eq(0) th').eq( $(this).index() ).text();
        $(this).html( '<input type="text" placeholder="Search '+title+'" />' );
    } ); 
  
    var table = $('#example').DataTable({
        orderCellsTop: true
    });
  
    // Apply the search
    table.columns().every(function (index) {
        $('#example thead tr:eq(1) th:eq(' + index + ') input').on('keyup change', function () {
            table.column($(this).parent().index() + ':visible')
                .search(this.value)
                .draw();
        });
    });
});