https://www.suedtirolmobil.info/typo3conf/ext/sta_content_elements/Resources/Public/Javascript/search.js

1document.addEventListener("DOMContentLoaded", function () {
2	const searchInput = document.getElementById('search-input');
3    const searchResetButton = document.getElementById('search-reset-button');
4	if (searchInput.value != '') {
5		searchResetButton.classList.add('SearchField__resetButton--show');
6	}
7
8	searchResetButton.addEventListener("click", function() {
9		const searchForm = document.getElementById('search-form');
10
11		// Resets input field and submits the form if the search query is not empty
12		if (searchInput.value != '') {
13			searchInput.value = '';
14			searchForm.submit();
15		}
16	});
17
18	searchInput.addEventListener("change", function () {
19		// hides reset button if the form if the search query is not empty
20		if (searchInput.value != '') {
21			searchResetButton.classList.add('SearchField__resetButton--show');
22		} else {
23			searchResetButton.classList.remove('SearchField__resetButton--show');
24		}
25	});
26});