duration-property

A Web Component to surface an audio or video's duration as a CSS Custom Property.

Demo | Further reading

Examples

<script type="module" src="duration-property.js"></script>

<duration-property>
  <audio controls src="https://darn.es/sounds/daviddarnes.m4a"></audio>
</duration-property>

Features

This Web Component allows you to:

• Surface the duration of an audio or video elements source duration as a CSS Custom Property (--duration)
• Update the --duration custom property if the duration of the source changes

Installation

You have a few options (choose one of these):

1. Install via npm: npm install @daviddarnes/duration-property
2. Download the source manually from GitHub into your project.
3. Skip this step and use the script directly via a 3rd party CDN (not recommended for production use)

Usage

Make sure you include the <script> in your project (choose one of these):

<!-- Host yourself -->
<script type="module" src="duration-property.js"></script>

<!-- 3rd party CDN, not recommended for production use -->
<script type="module" src="https://www.unpkg.com/@daviddarnes/[email protected]/duration-property.js"></script>

<!-- 3rd party CDN, not recommended for production use -->
<script type="module" src="https://esm.sh/@daviddarnes/[email protected]"></script>

Credit

With thanks to the following people:

• Zach Leatherman for inspiring this Web Component repo template