Browser support
u-elements
is committed to provide great support for all users and technologies, including older browser versions.
Based on up-to-date statistics from caniuse.com, u-elements
currently support 98.53% of all users on Chrome, Edge, Firefox, Firefox for Android, Opera, Safari, Safari on iOS, and Samsung Internet.
Minimum requirements
Browser version | Release date |
---|---|
Chrome 69+ | September 2018 |
Edge 79+ | January 2020 |
Firefox 95+ | December 2021 |
Firefox for Android 137+ | April 2025 |
Opera 56+ | September 2018 |
Safari 12.1+ | March 2019 |
Safari on iOS 12.2+ | March 2019 |
Samsung Internet 10.1+ | September 2019 |
Web features in use
u-elements
tracks browser support by monitoring the web features it uses. This is done by analyzing source code with JSHint and cross-referencing the identified features against MDN Browser Compatibility Data and caniuse.com usage statistics.
Here are the web features used by u-elements
that are not yet fully supported by all browsers:
Feature | Browser support |
---|---|
HTMLElement.inputMode | 98.53% |
Element.toggleAttribute | 98.75% |
Window.customElements | 99.17% |
:host | 99.18% |
:host() | 99.18% |
ShadowRoot.mode | 99.19% |
Element.attachShadow | 99.20% |
ShadowRoot.activeElement | 99.20% |
Element.slot | 99.20% |
Node.getRootNode | 99.25% |
Array.values | 99.25% |
Event.composed | 99.33% |
Node.isConnected | 99.36% |
Object.entries | 99.50% |
Object.values | 99.50% |
Element.append | 99.50% |
Element.prepend | 99.50% |
Element.shadowRoot | 99.51% |
KeyboardEvent.key | 99.57% |
:scope | 99.71% |
Array.includes | 99.72% |
Array.from | 99.74% |
Array.find | 99.74% |
Array.findIndex | 99.74% |
Event.isTrusted | 99.74% |
Array.of | 99.81% |
KeyboardEvent.repeat | 99.84% |
Element.closest | 99.87% |
String.repeat | 99.87% |
String.startsWith | 99.87% |
Object.getOwnPropertySymbols | 99.90% |
Array.keys | 99.90% |
Number.isNaN | 99.90% |
Number.parseFloat | 99.90% |
Number.isFinite | 99.90% |