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Async functions

Async functions make it possible to write asynchronous code that reads like synchronous code.

Last updated on : 2023-03-20

Browser Versions

Edge

Firefox

Chrome

Safari

Opera

5.5 - 11

12 - 14

15 - 111

2 - 51

52 - 113

4 - 54

55 - 114

3.2 - 10.1

11 - 16.4

9.5 - 41

42 - 95

Fully Supported

Partially

No Support

Specifications

ECMAScript Language Specification # sec-async-function-definitions

Syntax

async function name([param[, param[, ...param]]]) { statements }

Browser Compatibility

Async functions on IE is not supported on any IE versions.

Async functions on Edge is fully supported on 15-111, and not supported on 12-14 Edge versions.

Async functions on Firefox is fully supported on 52-113, and not supported on 2-51 Firefox versions.

Async functions on Chrome is fully supported on 55-114, and not supported on 4-54 Chrome versions.

Async functions on Safari is fully supported on 11-16.4, and not supported on 3.2-10.1 Safari versions.

Async functions on Opera is fully supported on 42-95, and not supported on 9.5-41 Opera versions.

Async functions on Safari on iOS is fully supported on 11-16.4, and not supported on 3.2-10.3 Safari on iOS versions.

Async functions on Android Browser is fully supported on 97-111, and not supported on 2.1-4 Android Browser versions.

Async functions on Opera Mobile is fully supported on 64-73, and not supported on 10-12 Opera Mobile versions.

Async functions on Chrome for Android is fully supported on all Chrome for Android versions.

Async functions on Firefox for Android is fully supported on all Firefox for Android versions.

Async functions on Samsung Internet is fully supported on 6.2-20, and not supported on 4-5 Samsung Internet versions.

Browser Support for Async functions

Async functions on Chrome

Async functions on Safari

Async functions on Firefox

Async functions on Internet Explorer

Async functions on Opera

Async functions on Edge

References

Data sourced from

High

Overall Browser Compatibility Score

Note:Async functions shows a browser compatibility score of 92. This is a collective score out of 100 to represent browser support of a web technology. The higher this score is, the greater is the browser compatibility. The browser compatibility score is not a 100% reflection for every browser and the web technology support. However, it does give you an estimate on how much you should rely on a particular web technology in terms of browser compatibility.

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