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BatteryManager.charging
A Boolean value indicating whether or not the device's battery is currently being charged.
BatteryManager.chargingTime
Indicates the amount of time, in seconds, that remain until the battery is fully charged.
BatteryManager.dischargingTime
Indicates the amount of time, in seconds, that remains until the battery is fully discharged.
BatteryManager.level
Indicates the current battery charge level as a value between
0.0 and 1.0.Channel Messaging API
The Channel Messaging API allows two separate scripts running in different browsing contexts attached to the same document (e.g., two IFrames, or the main document and an IFrame, two documents via a
SharedWorker, or two workers) to communicate directly, passing messages between one another through two-way channels (or pipes) with a port at each end.
ConvolverNode
The
ConvolverNode interface is an AudioNode that performs a Linear Convolution on a given AudioBuffer, often used to achieve a reverb effect. A ConvolverNode always has exactly one input and one output.Crypto
The
Crypto interface represents basic cryptography features available in the current context. It allows access to a cryptographically strong random number generator and to cryptographic primitives.CryptoKey
The
CryptoKey interface represents a cryptographic key derived from a specific key algorithm.DynamicsCompressorNode
Inherits properties from its parent,
AudioNode.Element.requestFullscreen()
The
Element.requestFullscreen() method issues an asynchronous request to make the element be displayed full-screen.File
The
File interface provides information about files and allows JavaScript in a web page to access their content.