BASELINE NowYouCanUse.com
Web Platform Baseline Status Breakdown Total Features: 1191
Search: Reset ×
Categories: All CSS (101) HTML elements (98) Selectors (46) JavaScript (43) Forms (40)
WebGL extensions (37) WebAssembly (22) Media queries (21) Fonts (19) Performance (19) Text (19) Scrolling (18) Arrays (17) Layout (17) HTML (16) Progressive web app (15) Typed arrays (14) Units (14) Canvas (13) Background (12) Color types (12) Media elements (12) Strings (12) Clipping, shapes, and masking (11) Security (11) Web components (11) WebXR (11) Typographic font features (10) Animation (9) Internationalization (9) Reporting (9) Text wrap (9) Clipboard (8) Workers (8) Containment (7) DOM (7) Fetch (7) JavaScript modules (7) Print media (7) Sensors (7) CSS object models (6) Image formats (6) Iterators (6) Landmark elements (6) Positioning (6) Promises (6) SVG (6) Storage (6) Streams (6) Credential management (5) Custom elements (5) Explicit defaults (5) Font synthesis (5) HTTP (5) Messaging (5) Multi-column (5) Resource hints (5) Ruby (5) Selection (5) Speech (5) Transitions (CSS) (5) View transitions (5) Web audio (5) WebGL (5) Container queries (4) Cookies (4) Counters (4) File system access (4) Flexbox (4) Gamepad (4) Grid (4) Images (4) Lists (4) Primitive types (4) Regular expressions (4) WebDriver (4) WebRTC (4) Blend mode (3) Borders and outlines (3) Gradients (3) Image scaling (3) JSON (3) Maps (3) MathML (3) Payments (3) Reading order (3) Scroll markers (3) Transforms (3) WebAuthn (3) WebGPU (3) White space (3) Worklets (3) XML (3) Collections (2) Compute pressure (2) Geolocation (2) IndexedDB (2) Parsing and serialization (2) Resource integrity (2) Sets (2) Text fragments (2) WebMCP (2) CSS environment variables (1)
Showing 2 of 2 features

2025

2 features
• November 2025

The Atomics.waitAsync() static method waits for a value in a shared memory location, providing a promise when the expected value is not yet in memory. The waitAsync() method is a non-blocking alternative to Atomics.wait().

Chrome 90
Firefox 145
Safari 16.4
Edge 90
Baseline Date: Nov 11, 2025
• April 2025
Newly Available

The Atomics.pause() static method gives a hint to the CPU that the code calling the method is in a short-duration wait for shared memory, known as spinning or a spinlock.

Chrome 133
Firefox 137
Safari 18.4
Edge 133
Baseline Date: Apr 1, 2025