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RTCInboundRtpStreamStats: nackCount property

files/en-us/web/api/rtcinboundrtpstreamstats/nackcount/index.md

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{{APIRef("WebRTC")}}

The nackCount property of the {{domxref("RTCInboundRtpStreamStats")}} dictionary indicates the number of times the receiver sent a NACK packet to the sender.

A NACK (Negative ACKnowledgement, also called "Generic NACK") packet tells the sender that one or more of the {{Glossary("RTP")}} packets it sent were lost in transport.

Value

A positive integer.

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}