如果页面位于页面顶部，则在页面加载时滚动页面

Question

I would like to do something if the page is detected to be at the very top of the page otherwise don't do it. I'm guessing I need to use and if statement somehow but I'm just not sure how to do this.

For example, I want the page to scroll to 125 pixels if the page is at the very top otherwise don't scroll to that position.

$('html, body').animate({scrollTop:125}, 4000);

Answer 1

Use this on load:

function checkTop(){
    if ($(window).scrollTop() == 0) {
        $(window).animate({scrollTop:125}, 4000);
    }
}

checkTop();

$(window).scroll(function(){
    checkTop();
})