How to Dynamically Change slidesToScroll with Smooth Navigation Using Slick.js

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Understanding the Problem

Solution Overview

Step 1: Initial Setup

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

Step 2: Implement Intersection Observer

Next, we will utilize the Intersection Observer to monitor the visibility of different paragraphs in the document in relation to the viewport. When a paragraph becomes visible, we will navigate the slick slider to the respective slide using the slickGoTo method.

Here is how you can set up the observer:

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

Step 3: Converting ID to Slide Number

To enable the navigation to the correct slide, you need a method that converts the section IDs into corresponding slide numbers. Here’s a simple implementation:

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

Step 4: Observing the Sections

Finally, track all sections with an id attribute to make them visible to the observer:

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

Final Implementation

Now putting it all together, here's how your implementation should look. This combines the slide initialization, the Observer, and ID-to-number conversion for seamless navigation:

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

Conclusion