Browser Support

Supported Browsers

js-validation is written in vanilla ES6+ JavaScript and works in all modern browsers without polyfills.

Browser	Minimum Version	Status
Chrome	60+	✅ Supported
Firefox	55+	✅ Supported
Safari	12+	✅ Supported
Edge	79+ (Chromium)	✅ Supported
Opera	47+	✅ Supported
Chrome Android	60+	✅ Supported
Safari iOS	12+	✅ Supported

Not Supported

Browser	Notes
Internet Explorer	Not supported (no ES6 support)
Edge Legacy (EdgeHTML)	Not supported

Required Browser Features

The library relies on the following standard browser APIs:

document.querySelector / querySelectorAll
addEventListener
classList
dataset (for data-rule-* and data-msg-* attributes)
Set and Array.from
Arrow functions and template literals (ES6)

All of these are natively available in the supported browsers listed above.

Testing

The library is tested across multiple browser engines using Playwright:

Chromium (Chrome/Edge)
Firefox
WebKit (Safari)

Using with Older Browsers

If you need to support older browsers, you can transpile the ES module source using tools like Babel and add appropriate polyfills. However, this is not officially supported.