Filter through table

by Megi93

HTML

<h2>My Customers</h2>

<input type="text" id="myInput" onkeyup="myFunction()" placeholder="Search for names.." title="Type in a name">

<table id="myTable">
    <tr class="header">
        <th style="width:60%;">Name</th>
        <th style="width:40%;">Country</th>
    </tr>
    <tr>
        <td>Alfreds Futterkiste</td>
        <td>Germany</td>
    </tr>
    <tr>
        <td>Berglunds snabbkop</td>
        <td>Sweden</td>
    </tr>
    <tr>
        <td>Island Trading</td>
        <td>UK</td>
    </tr>
    <tr>
        <td>Koniglich Essen</td>
        <td>Germany</td>
    </tr>
    <tr>
        <td>Laughing Bacchus Winecellars</td>
        <td>Canada</td>
    </tr>
    <tr>
        <td>Magazzini Alimentari Riuniti</td>
        <td>Italy</td>
    </tr>
    <tr>
        <td>North/South</td>
        <td>UK</td>
    </tr>
    <tr>
        <td>Paris specialites</td>
        <td>France</td>
    </tr>
</table>

CSS

* {
    box-sizing: border-box;
}

#myInput {
    background-image: url('/css/searchicon.png');
    background-position: 10px 10px;
    background-repeat: no-repeat;
    width: 100%;
    font-size: 16px;
    padding: 12px 20px 12px 40px;
    border: 1px solid #ddd;
    margin-bottom: 12px;
}

#myTable {
    border-collapse: collapse;
    width: 100%;
    border: 1px solid #ddd;
    font-size: 18px;
}

#myTable th,
#myTable td {
    text-align: left;
    padding: 12px;
}

#myTable tr {
    border-bottom: 1px solid #ddd;
}

#myTable tr.header,
#myTable tr:hover {
    background-color: #f1f1f1;
}

JavaScript

function myFunction() {
    var input = document.getElementById("myInput"),
        filter = input.value.toUpperCase(),
        table = document.getElementById("myTable"),
        tr = table.getElementsByTagName("tr");

for (var i = 0; i < tr.length; i++) {
		// in tr find td with index 0
        var td = tr[i].getElementsByTagName("td")[0];
        if (td) {
			// if td value is greater than -1
			// returns -1 if the value to search for never occurs
            if (td.innerHTML.toUpperCase().indexOf(filter) > -1) {
				// display row
                tr[i].style.display = "";
            } else {
			// otherwise don't
                tr[i].style.display = "none";
            }
        }
    }
}