In an attempt to replicate a "current page" feature using divs, similar to a PDF reader.
document.addEventListener("DOMContentLoaded", function(event) {
var container = document.getElementById("container");
container.onscroll = function() {
let position = container.scrollTop;
let divs = document.querySelectorAll('.page');
for (div of divs) {
//???
}
}
});#container {
width: 400px;
height: 600px;
overflow: auto;
}
.page {
width: 400px;
}
.red {
background-color: red;
height: 600px;
}
.blue {
background-color: blue;
height: 400px;
}Current page: <span id="page-counter">1</span>
<div id='container'>
<div id="div-1" class="page red"></div>
<div id="div-2" class="page blue"></div>
<div id="div-3" class="page red"></div>
<div id="div-4" class="page blue"></div>
</div>I'm seeking advice on how to dynamically update the page-counter span to display "3" when the third div is reached.
Something akin to this example: https://i.stack.imgur.com/9ppQd.png
Appreciate your help, Celso