downloads.BooleanDelta

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 boolean representing the current boolean value.
previousOptional
A boolean representing the previous boolean value.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxOperaSafariFirefox for Android
BooleanDeltaChrome Full support YesEdge Full support 79Firefox Full support 47Opera Full support YesSafari No support NoFirefox Android No support 48 — 79

Legend

Full support  
Full support
No support  
No support
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.