auto animated scroll down using jQuery

Question

I am trying to make an animated scroll to a bottom button using jQuery that fades out when the page is located at the bottom. I have found this code on the internet and modified it, but I could not get it work.

 <script>
    //to bottom
    $(document).ready(function(){

        // hide #back-top first

        $("#back-bottom").show();

        // fade in #back-top
        $(function () {
            $(window).scroll(function () {
                if ($(this).scrollTop()  1) {
                    $('#back-bottom').hide();
                } else {
                    $('#back-bottom').show();
                }
            });

            // scroll body to 0px on click
            $('#back-bottom a').click(function () {
                $('body,html').animate({ scrollTop: 0 }, 800);
                return false;
            });
        });

    });
    </script>

Solution 1

I think you need to calculate body height and pass that to the scrollTop parameter in the animate

$('body,html').animate({ scrollTop: $('body').height() }, 800);

[Check here the working demo] // Link has stopped working

Solution 2

$('#back-bottom a').click(function () {
                $('body,html').animate({ scrollTop: $('body').height() }, 500);
                return false;
            });

i think it will work for you

Comments

[Sibu]

can you show your html markup too

[Asciiom]

Create a fiddle for this please so people can see what's going wrong exactly. It's hard to guess

[user1656139]

Thanks I really appreciate it and please do give me that demo link

[Michael Peterson]

Should work for scrolling to the bottom, but there was also an error in the code for showing the button when not at the bottom.

[user1656139]

thanks soo much it works great howerever 2 problems 1 it does not scroll smooth and 2 it does not fade out please tell me how to achive that thanks

[Anudeep GI]

first think u needed is smooth scroll for that 500 increase to 1000 or how much u needed depending upon that

[Anudeep GI]

for fade out use this code $('#back-bottom a').fadeOut('slow'); (after this code use fade out code $('body,html').animate({ scrollTop: $('body').height() }, 500); )