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senangwebs-loading

v1.2.5

Published

Lightweight JavaScript library that provides customizable loading screens for web applications.

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Links

Maintainers

a-hakima-hakim

Keywords

loadingindicatorwebcustomizable

Readme

SenangWebs Loading (SWL)

SenangWebs Loading (SWL) is a lightweight JavaScript library that provides customizable loading screens for web applications. With minimal setup, you can add elegant loading animations to your web pages, enhancing the user experience during page load.

License: MIT

Features

  • Instant loading indicator before DOM loads
  • Easy to integrate with existing projects
  • Multiple loader types: spinner, pulsing, and custom image
  • Customizable colors for loaders and overlay
  • Configurable overlay stacking level
  • Backdrop blur effect option
  • Minimum duration setting to ensure visibility of the loading screen
  • Priority loading - shows immediately before page content
  • Smooth fade-out transitions
  • Image preloading support
  • No dependencies, pure vanilla JavaScript
  • Compatible with Tailwind CSS
  • Responsive and works on all modern browsers

Examples

https://unpkg.com/senangwebs-loading@latest/examples/index.html

Installation

Using npm

npm install senangwebs-loading

Using a CDN

Include SenangWebs Loading in your HTML file's head section with the defer attribute:

<head>
  <script src="https://unpkg.com/senangwebs-loading@latest/dist/swl.js" defer></script>
</head>

Usage

  1. Include the SWL JavaScript file in your HTML's head section with defer:
<!-- If installed via npm -->
<head>
  <script src="path/to/swl.js" defer></script>
</head>

<!-- Or if using unpkg -->
<head>
  <script src="https://unpkg.com/senangwebs-loading@latest/dist/swl.js" defer></script>
</head>
  1. Add a div element with the data-swl attribute and any customization options:
<div 
  data-swl 
  data-swl-type="spinner" 
  data-swl-color="#007bff" 
  data-swl-duration="2000"
  data-swl-bg-color="#ffffff"
  data-swl-bg-opacity="0.8"
  data-swl-bg-blur="5"
  data-swl-z-index="9999"
>
  <!-- Optional: Custom loader content -->
</div>

Configuration Options

You can customize the loader using the following data attributes:

| Attribute | Default | Description | |---|---:|---| | data-swl-type | spinner | Loader type: spinner, pulse, or image | | data-swl-color | #000000 | Spinner or pulse color | | data-swl-image | none | URL for the custom image loader | | data-swl-duration | 0 | Minimum display duration in milliseconds | | data-swl-bg-color | #ffffff | Overlay background color | | data-swl-bg-opacity | 0.8 | Overlay background opacity | | data-swl-bg-blur | 0 | Backdrop blur in pixels | | data-swl-z-index | 9999 | Overlay stacking level; the configured value overrides the default |

Performance Best Practices

  1. Place the script in the head with defer attribute:
<head>
  <script src="path/to/swl.js" defer></script>
</head>
  1. Preload custom loader images:
<head>
  <link rel="preload" href="path/to/loader.gif" as="image">
</head>
  1. Use appropriate minimum duration:
  • For small pages: 500-1000ms
  • For medium pages: 1000-2000ms
  • For content-heavy pages: 2000-3000ms
  1. Choose a z-index that matches your application:
  • The default is 9999
  • Use a higher value when the loader must appear above application modals
  • Use a lower value when selected application UI should remain visible

Examples

Default Spinner

<div data-swl data-swl-color="#007bff" data-swl-duration="2000"></div>

Pulsing Loader with Custom Color

<div data-swl data-swl-type="pulse" data-swl-color="#ff0000" data-swl-duration="3000"></div>

Custom Image Loader

<div data-swl data-swl-type="image" data-swl-image="/path/to/your/loader.gif" data-swl-duration="2500"></div>

Customized Overlay

<div 
  data-swl
  data-swl-type="spinner"
  data-swl-color="#00ff00" 
  data-swl-duration="3000" 
  data-swl-bg-color="#000000"
  data-swl-bg-opacity="0.5"
  data-swl-bg-blur="5"
  data-swl-z-index="10000">
</div>

Custom Loader Content

<div data-swl data-swl-duration="2000">
  <div class="custom-loader">Loading...</div>
</div>

Browser Support

SenangWebs Loading works on all modern browsers, including:

  • Chrome
  • Firefox
  • Safari
  • Edge
  • Opera

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

This project is licensed under the MIT License - see the LICENSE.md file for details.

Acknowledgments

  • Inspired by various loading screen libraries in the web development community
  • Thanks to all contributors who have helped to improve this library

Support

If you encounter any issues or have questions, please file an issue on the GitHub repository.