Emulate Spacebar Scroll Function

I'm developing a function which scrolls to every image, but when in text i'd like to emulate the spacebar function So the code I have is: window.scrollBy(0,window.innerHeight*0.8);

Solution 1:

window.scrollTo will do that. You'll have to use the current scroll position + a set interval like

window.scrollTo(0, window.scrollY+=200)

I'm not sure what interval the space bar actually uses but I'm sure you can find a value you're happy with.

edit: window.pageYOffset might be more browser friendly. Here's the space bar emulated in your own code. Not sure why you'd want to:

document.onkeydown = function(event) { 
    if(event.keyCode===32){
        event.preventDefault();
        window.scrollTo(0, window.pageYOffset+=window.innerHeight*0.8)
    } 
}