JavaScript Promise finally()
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Definition and Usage
finally() The method provides a callback function.
The callback is a function that will execute when a Promise is settled (either fulfilled or rejected).
Example
myPromise.finally(() => myDisplay("Completed"));
Syntax
promise.finally(settled())
Parameters
| Parameters | Description |
|---|---|
| settled() | A function to be executed when a Promise is settled (fulfilled or rejected). |
Return Value
| Type | Description |
|---|---|
| Object | New Promise object. |
Browser Support
finally() It is a feature of ECMAScript 2018.
Since June 2020, ES2018 has been supported in all modern browsers:
| Chrome | Edge | Firefox | Safari | Opera |
|---|---|---|---|---|
| Chrome 63 | Edge 79 | Firefox 78 | Safari 12 | Opera 50 |
| December 2017 | January 2020 | June 2020 | September 2018 | January 2018 |
finally() Does not support Internet Explorer.
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