DoubleDelta type of the
downloads API represents the difference between two doubles.
Values of this type are objects. They contain the following properties:
numberrepresenting the current double value.
numberrepresenting the previous double value.
BCD tables only load in the browser
Note: This API is based on Chromium's
Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.