//
let index = 0;
function prepare() {
let size = document.querySelectorAll("*[class$='slide']").length; document.addEventListener("keydown", (event) => { if (event.key === "ArrowLeft" || event.key === "ArrowUp" || event.key === "Backspace") { if (index > 0) { index --; } scroll(); } else if (event.key === "ArrowRight" || event.key === "ArrowDown" || event.key === "Enter" || event.key === " ") { if (index < size - 1) { index ++; } scroll(); } });
}
function scroll() {
document.querySelectorAll("*[class$='slide']")[index].scrollIntoView(); console.log("Page: " + index);
}
window.onload = prepare;