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Discover how to create an efficient `load more` feature on your webpage using vanilla JavaScript, without relying on jQuery.
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This video is based on the question https://stackoverflow.com/q/67827732/ asked by the user 'Millhorn' ( https://stackoverflow.com/u/2464865/ ) and on the answer https://stackoverflow.com/a/67828810/ provided by the user 'InspectorGadget' ( https://stackoverflow.com/u/13891083/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Implement Load More Functionality with Vanilla JavaScript

We often encounter scenarios in web development where we'd like to display a limited number of items initially and provide a way for users to load more. This load more functionality enhances user experience on pages filled with content, such as articles, products, and galleries. While many might be familiar with achieving this with jQuery, it’s quite feasible using only vanilla JavaScript.

In this guide, we will explore how to build a load more feature with step-by-step instructions, even if you're transitioning from jQuery to vanilla JavaScript. Let's dive in!

Understanding the Problem

The goal here is to reveal a set number of items on a page (for instance, news items) when a button is clicked. Initially, a specified number of items will be visible, and each click of the button will reveal more items until there are no hidden items left.

The Initial jQuery Example

Here’s a quick look at the jQuery code that achieves this functionality:

[[See Video to Reveal this Text or Code Snippet]]

The above code does a great job, but now we need to reproduce this functionality using vanilla JavaScript.

Setting Up the Vanilla JavaScript Solution

Let’s break down the solution into manageable parts. We will start by setting up HTML, CSS, and then the JavaScript to handle the loading of more items.

1. HTML Structure

Start by creating a simple HTML structure to hold your items and the button:

[[See Video to Reveal this Text or Code Snippet]]

2. CSS for Hidden Items

Use CSS to hide the elements that are initially not visible:

[[See Video to Reveal this Text or Code Snippet]]

3. JavaScript Logic

Now, let’s write the JavaScript to handle the visibility of the items when the button is pressed. We will make sure to replace the jQuery logic with vanilla JavaScript:

[[See Video to Reveal this Text or Code Snippet]]

Explanation of the Code

Selecting Hidden Items: We select all .hidden items and convert the NodeList to an array for easier manipulation with splice.

Initial Load: The first 9 items are displayed on page load using splice(0, 9), which modifies the hiddenItems directly.

Load More Button Logic: When the button is clicked, the next 6 items are shown. Once there are no more items to load, the button is hidden by adding the hidden class.

Summary

Implementing load more functionality using vanilla JavaScript not only helps in optimizing your webpage but also makes your code lighter and potentially faster.

Key Takeaways:

Start by setting your HTML and CSS correctly.

Utilize the splice method for showing more items, mimicking jQuery's slice.

Add event listeners to your button to manage the display of items as needed.

With the understanding of this implementation, you should be able to expand your web projects with efficient user-friendly features! If you have any further questions or need assistance, feel free to reach out. Happy coding!