Example
<!DOCTYPE html>
<html>
<body>
<h1>The Document Object</h1>
<h2>The querySelectorAll() Method</h2><p>Add a background color all elements with class=\”example\”:</p>
<h2 class=\”example\”>A heading</h2><div class=\”asdf\”><p class=\”example\”>A paragraph.</p> </div>
<script>
const tinaicon = document.querySelectorAll(\”.asdf .example\”);
for (let i = 0; i < tinaicon.length; i++) {
tinaicon[i].innerHTML = \”your text here\”;
}
</script></body>
</html>
output
![\"\"](\"https://phponline.in/wp-content/uploads/2023/05/change-text-by-script.jpg\")
Browser Support
document.getElementsByClassName() is a DOM Level 1 (1998) feature.
It is fully supported in all browsers:
| Chrome | Edge | Firefox | Safari | Opera | IE |
| Yes | Yes | Yes | Yes | Yes | 9-11 |
Parameters
| Parameter | Description |
| classname | Required. The class name of the elements. Search for multiple class names separated by spaces like \”test demo\”. |