initiallyHideFiltterinMobile.js

if( /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent) ) {

    var btnn = document.querySelector('.footable_parent');
    let btn = document.createElement("button");
    btn.classList.add('mybtn');
    btn.innerHTML = "DISPLAY FILTERS";
    btnn.prepend(btn);


    $('tr.footable-filtering').hide();

    document.querySelector('button.mybtn').addEventListener('click', function(){

        $('tr.footable-filtering').toggle();

        const initialText = 'HIDE FILTERS';

        if (btn.textContent.toLowerCase().includes(initialText.toLowerCase())) {
            btn.textContent = 'DISPLAY FILTERS';
        } else {
            btn.textContent = initialText;
        }
    });

}