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This API is available on Firefox OS for internal applications only.
Summary
The sampleRate property indicates the time in seconds between when two data usage chunks are stored.
A data usage chunk is a MozNetworkStatsData object representing the total amount of bytes received and sent during the amount of time defined by the sampleRate property.
Syntax
var time = navigator.mozNetworkStats.sampleRate;
Value
A number.
Specifications
Not part of any specification.