BASELINE NowYouCanUse.com
Web Platform Baseline Status Breakdown Total Features: 1219
Widely Available 655 (53.73%)
Newly Available 120 (9.84%)
Limited 444 (36.43%)
Search:
Status: All Widely Available
Categories: All Forms (3) WebGL extensions (3) HTML elements (2) Media queries (2) Arrays (1)
Fonts (1) HTML (1) Iterators (1) JavaScript modules (1) Promises (1) Reading order (1) Resource integrity (1) Security (1) Speech (1) Text wrap (1) Workers (1)
Years: All 2025 2023 2021 2020 2018 2017 2015
View:
Timeline Grid
Showing 3 of 3 features

2018

3 features
• December 2018

Constraint validation API

Forms
Widely Available

Methods that validate form controls before submission, such as checkValidity(), reportValidity() and setCustomValidity().

Chrome 40
Firefox 51
Safari 10.1
Edge 18
Baseline Date: Dec 11, 2018
• October 2018

<output>

Forms
Widely Available

The <output> element represents the result of a calculation, user action, or form entry.

Chrome 10
Firefox 4
Safari 7
Edge ≤18
Baseline Date: ≤ Oct 2, 2018

<meter>

Forms
Widely Available

The <meter> element represents a scalar value within a known range or a fractional value, typically shown as a progress bar.

Chrome 6
Firefox 56
Safari 6
Edge 18
Baseline Date: Oct 2, 2018