ULongRange - Web APIs 编辑

The ULongRange dictionary is used to define a range of permitted integer values for a property, with either or both a maximum and minimum value specified. The ConstrainULongRange dictionary is based on this, augmenting it to support exact and ideal values as well.

Properties

max

A numeric value in the range of signed 32-bit integers, specifying the largest permissible value of the property it describes.

min

A numeric value in the range of signed 32-bit integers, specifying the smallest permissible value of the property it describes.

The specified min and/or and max values are required. If no match can be found that is within the given range, an error will occur.

Specifications

Browser compatibility

BCD tables only load in the browser

See also

• Media Capture and Streams API
• Capabilities, constraints, and settings
• ConstrainULongRange
• MediaTrackConstraints
• MediaTrackCapabilities
• MediaTrackSupportedConstraints