NetworkInformation: rtt property

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Note: This feature is available inWeb Workers.

Thertt read-only property of theNetworkInformation interface returns the estimated effective round-trip time of the current connection, rounded to the nearest multiple of 25 milliseconds.This value is based on recently observed application-layer RTT measurements across recently active connections.It excludes connections made to a private address space.If no recent measurement data is available, the value is based on the properties of the underlying connection technology.