Scroll to bottom of div?

Question

I am creating a chat using Ajax requests and I'm trying to get messages div to scroll to the bottom without much luck.

I am wrapping everything in this div:

#scroll {
    height:400px;
    overflow:scroll;
}

Is there a way to keep it scrolled to the bottom by default using JS?

Is there a way to keep it scrolled to the bottom after an ajax request?

Answer 1

This is much easier if you're using jQuery scrollTop:

$("#mydiv").scrollTop($("#mydiv")[0].scrollHeight);

Answer 2

Here's what I use on my site:

var objDiv = document.getElementById("your_div");
objDiv.scrollTop = objDiv.scrollHeight;

Answer 3

Try the code below:

const scrollToBottom = (id) => {
    const element = document.getElementById(id);
    element.scrollTop = element.scrollHeight;
}

You can also use Jquery to make the scroll smooth:

const scrollSmoothlyToBottom = (id) => {
    const element = $(`#${id}`);
    element.animate({
        scrollTop: element.prop("scrollHeight")
    }, 500);
}

Here is the demo

Here's how it works:

Ref: scrollTop, scrollHeight, clientHeight