Implementing class changes based on scroll events in JavaScript

Question

Implementing class changes based on scroll events in JavaScript

const scrollList = document.getElementsByClassName('scrollList');


function scrollLeft() {
    scrollList.scrollLeft -= 50
}

function scrollRight() {
    scrollList.scrollLeft += 50
}

#scrollList {
  display: flex;
  overflow: auto;
  width: 100px;
}

.div {
  display: flex;
}

<div class="div">
  <button onclick="scrollLeft()">Scroll Left</button>
    <div id="scrollList">
    <p>Image</p>
    <p>Image</p>
    <p>Image</p>
    <p>Image</p>
    <p>Image</p>
    <p>Image</p>
    </div>
<button  onclick="scrollRight()">Scroll Right</button>
</div>

I have implemented a horizontal page scroll layout with buttons for scrolling left and right within a div element. However, I am looking to dynamically hide the left and right scroll buttons when reaching the boundaries of the content. Specifically, I would like to hide the left button when starting from the beginning of the gallery, and hide the right button when there are no more images to scroll towards. How can I achieve this behavior using javascript?

javascript html css

Answer 1

Answer №1

Incorporate the window.scroll() function within your JavaScript code. Define a variable xScroll to capture the value of window.scrollX, which returns a floating-point number. Create conditional statements to control the display of an arrow based on the scroll position. Assign a CSS class dynamically using ClassName={xScroll<70 ? 'hide' : 'show'}.

Answer 2

Incorporate the window.scroll() function within your JavaScript code. Define a variable xScroll to capture the value of window.scrollX, which returns a floating-point number. Create conditional statements to control the display of an arrow based on the scroll position. Assign a CSS class dynamically using ClassName={xScroll<70 ? 'hide' : 'show'}.

Answer 3

Answer №2

Allow me to assist my pal with this helpful information. ^_^

Let's take a look at the code snippet below which demonstrates how you can hide the scrollbar but still maintain its functionality:

<!DOCTYPE html>
<html>
<head>
<style>
.example {
  background-color: #eee;
  width: 200px;
  height: 100px;
  border: 1px dotted black;
  overflow-y: scroll; /* Add the ability to scroll */
}

/* Hide scrollbar for Chrome, Safari and Opera */
.example::-webkit-scrollbar {
    display: none;
}

/* Hide scrollbar for IE, Edge and Firefox */
.example {
  -ms-overflow-style: none;  /* IE and Edge */
  scrollbar-width: none;  /* Firefox */
}
</style>
</head>
<body>

<h2>Hide scrollbar but keep functionality</h2>
<p>Try to scroll inside the div below:</p>

<div class="example">Some text to enable scrolling.. Some text to enable scrolling.. (content continues) </div>

</body>
</html>

Answer 4

Allow me to assist my pal with this helpful information. ^_^

Let's take a look at the code snippet below which demonstrates how you can hide the scrollbar but still maintain its functionality:

<!DOCTYPE html>
<html>
<head>
<style>
.example {
  background-color: #eee;
  width: 200px;
  height: 100px;
  border: 1px dotted black;
  overflow-y: scroll; /* Add the ability to scroll */
}

/* Hide scrollbar for Chrome, Safari and Opera */
.example::-webkit-scrollbar {
    display: none;
}

/* Hide scrollbar for IE, Edge and Firefox */
.example {
  -ms-overflow-style: none;  /* IE and Edge */
  scrollbar-width: none;  /* Firefox */
}
</style>
</head>
<body>

<h2>Hide scrollbar but keep functionality</h2>
<p>Try to scroll inside the div below:</p>

<div class="example">Some text to enable scrolling.. Some text to enable scrolling.. (content continues) </div>

</body>
</html>

Implementing class changes based on scroll events in JavaScript

Answer №1

Answer №2

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