[TOC] ## 入門 一旦將`RTCPeerConnection`連接到遠程對等方，便可以在它們之間流式傳輸音頻和視頻 ``` const localStream = await getUserMedia({vide: true, audio: true}); const peerConnection = new RTCPeerConnection(iceConfig); localStream.getTracks().forEach(track => { peerConnection.addTrack(track, localStream); }); ``` ## 添加遠程軌道 為了接收其他對等方添加的遠程軌道，我們在本地`RTCPeerConnection`上注冊了一個偵聽器，以監聽`track`事件。 ``` const remoteStream = MediaStream(); const remoteVideo = document.querySelector('#remoteVideo'); remoteVideo.srcObject = remoteStream; peerConnection.addEventListener('track', async (event) => { remoteStream.addTrack(event.track, remoteStream); }); ```