useScrollTracker

useScrollTracker is a custom React hook that tracks the user's scroll progress on a web page or within a specific container. It returns the current scroll percentage, making it easy to implement features like reading progress bars, infinite scrolling, scroll-based animations, and sticky headers. The hook is lightweight, flexible, and suitable for enhancing user experience in React applications. With built-in support for both window and custom container elements, useScrollTracker helps developers seamlessly integrate scroll-based features into their projects.,

📦 Installation

Install the package using npm or yarn:

1npm install use-scroll-tracker

🔍 Use Cases

The use-scroll-tracker hook can be useful for a variety of scenarios, including:

• Infinite Scrolling: Trigger loading more content when the user reaches a certain scroll percentage.
• Scroll-Triggered Animations: Activate animations or visual effects based on the scroll position.
• Sticky Headers or Footers: Show or hide elements when the user scrolls in a certain direction.
• Progress Indicators: Display a reading progress bar for long articles or documents.
• Scroll Analytics: Track how far users scroll down a page for analytics purposes.

🚀 Features

• Tracks scroll percentage and scroll direction (up, down, left, right).
• Supports both vertical and horizontal scrolling.
• Allows custom threshold events to trigger callbacks at specific scroll percentages.
• Works with both window and specific scrollable elements.
• Includes TypeScript type definitions for enhanced development experience.

📜 API

The useScrollTracker hook returns an object with the following properties:

• scrollPercentage: The current scroll percentage of the target element.
• scrollDirection: The direction of scrolling. It can be one of the following: up, down, left, right, or null if the direction hasn't changed.

☑ Options

The hook accepts an options object with the following properties:

• thresholdEvents: An object where keys are scroll percentages and values are callback functions that trigger when the scroll reaches or exceeds the specified percentage.
• horizontalScroll: A boolean to indicate whether the scrolling is horizontal (true) or vertical (false). The default is false (vertical scroll).

📖 Examples

Here are some improved examples for using the use-scroll-tracker package with both window objects and HTML elements, along with better CSS styling:

Example 1: Tracking Scroll Progress on the Window Object

This example demonstrates how to track the scroll progress of the entire window: Live Demo

Example 2: Tracking Scroll Progress on the Element.

This example demonstrates how to track the scroll progress of the entire element: Live Demo

⚠️ Error Handling

If an invalid targetElement is provided (not an HTMLElement or Window), a warning will be logged to the console:

1Invalid targetElement provided. Please provide a valid HTMLElement or use the default window.

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