This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.

The getCost() property of the BudgetService interface returns a Promise that resolves to a double indicating the worst-case background operation cost of the provided background operation.


var aPromise = BudgetService.getCost(operation);
aPromise.then(function(someDouble){ ... });


Must be "silent-push".


A Promise that resolves to a number.


Specification Status Comment
Web Budget API
The definition of 'getCost()' in that specification.
Editor's Draft Initial definition.

Browser Compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 55.0 ? ? 42 ?
Feature Android Android Webview Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile Chrome for Android
Basic support No support 55.0 ? ? ? 42 ? 55.0

Document Tags and Contributors

 Contributors to this page: bunnybooboo, jpmedley
 Last updated by: bunnybooboo,