document.addEventListener('DOMContentLoaded', function() { var elems = document.querySelectorAll('.slider'); var instances = M.Slider.init(elems, options); });
document.addEventListener('DOMContentLoaded', function() {
    var elems = document.querySelectorAll('.slider');
    var instances = M.Slider.init(elems, options);
  });
  // Or with jQuery
  $(document).ready(function(){
    $('.slider').slider();
  });
