The BooleanDelta type of the downloads API represents the difference between two booleans.
Type
Values of this type are objects. They contain the following properties:
currentOptional- A
booleanrepresenting the current boolean value. previousOptional- A
booleanrepresenting the previous boolean value.
Browser compatibility
BCD tables only load in the browser
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Acknowledgements
This API is based on Chromium's chrome.downloads API.
Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.