$( document ).ready(function() { //Get local storage value or true (as it is default to be open) let isMenuOpen = (localStorage.getItem('isMenuOpen') === 'true'); if(!isMenuOpen){ $('html').addClass('sidebar-left-collapsed') } //Toggle menu position on localstorage to save collapsed state $('.sidebar-toggle').on('click', function (){ isMenuOpen = !isMenuOpen; localStorage.setItem('isMenuOpen', isMenuOpen.toString()); }) });