The Geolocation interface represents an object able to programmatically obtain the position of the device. It gives Web content access to the location of the device. This allows a Web site or app to offer customized results based on the user's location.
The HTMLHyperlinkElementUtils.hash property returns a DOMString containing a '#' followed by the fragment identifier of the URL. The fragment is not percent-decoded.
The HTMLHyperlinkElementUtils.host property is a USVString containing the host, that is the hostname, and then, if the port of the URL is nonempty, a ':', and the port of the URL.
The HTMLHyperlinkElementUtils.hostname property is a USVString containing the domain of the URL.
The HTMLHyperlinkElementUtils.pathname property is a USVString containing an initial '/' followed by the path of the URL.
The HTMLHyperlinkElementUtils.port property is a USVString containing the port number of the URL.
The HTMLHyperlinkElementUtils.protocol property is a USVString representing the protocol scheme of the URL, including the final ':'.
The HTMLHyperlinkElementUtils.search property, is a search string, also called a query string, that is USVString containing a '?' followed by the parameters of the URL.
The URLUtils.searchParams property is a URLSearchParams containing the query/search parameters of the URL.
The HTMLHyperlinkElementUtils.username property is a USVString containing the username specified before the domain name.
The getFrequencyResponse() method of the IIRFilterNode interface takes the current filtering algorithm's settings and calculates the frequency response for frequencies specified in the frequencyHz array of frequencies.
A MediaElementSourceNode has no inputs and exactly one output, and is created using the AudioContext.createMediaElementSource method. The amount of channels in the output equals the number of channels of the audio referenced by the HTMLMediaElement used in the creation of the node, or is 1 if the HTMLMediaElement has no audio.
The active read-only property of the MediaStream interface returns a Boolean value that will return to be  true if the MediaStream is active, else false.
A MediaElementSourceNode has no inputs and exactly one output, and is created using the AudioContext.createMediaStreamSource method. The amount of channels in the output equals the number of channels in AudioMediaStreamTrack. If there is no valid media stream, then the number of output channels will be one silent channel.