if the screen is n width jquery code example

Example 1: jquery check if screen size

if ($(window).width() < 960) {
   alert('Less than 960');
}
else {
   alert('More than 960');
}

Example 2: jquery if screen size

$(document).ready(function() {
    if($(window).width() >= 1024) {
        $('a.expand').click();
    }
});