Apply an IF condition to every element in an HTML table with JavaScript?
For this, you can use document.querySelectorAll.forEach().
Example
Following is the code −
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<link rel="stylesheet"
href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<body>
<table>
<tr>
<td class="demo"> Java </td>
</tr>
<tr>
<td class="demo"> MySQL </td>
</tr>
<tr>
</tr>
</table>
</body>
<script>
document.querySelectorAll(".demo").forEach(function (obj) {
if (obj.innerText.trim() === "MySQL") {
obj.innerText = "Javascript";
}
if (obj.innerText.trim() === "MongoDB") {
obj.innerText = "Python";
}
});
</script>
</html>To run the above program, save the file name anyName.html(index.html). Right click on the file
and select the option “Open with live server” in VS Code editor.
Output
This will produce the following output −
Published on 27-Oct-2020 14:07:03
