This part is js part and ı want to delete preloader from all my pages.How can I do that.

$(window).on('load', function () {
    $('[data-loader="circle-side"]').fadeOut(); // will first fade out the loading animation
    $('#preloader').delay(350).fadeOut('slow'); // will fade out the white DIV that covers the website.
    $('body').delay(350);
    $('#hero_in h1,#hero_in form').addClass('animated');
    $('.hero_single, #hero_in').addClass('start_bg_zoom');
    $(window).scroll();
});