how to implement loudspeaker in web development
navigator.mediaDevices.enumerateDevices() .then(gotDevices) .catch(errorCallback);...function gotDevices(deviceInfos) { ... for (var i = 0; i !== deviceInfos.length; ++i) { var deviceInfo = deviceInfos[i]; var option = document.createElement('option'); option.value = deviceInfo.deviceId; if (deviceInfo.kind === 'audioinput') { option.text = deviceInfo.label || 'Microphone ' + (audioInputSelect.length + 1); audioInputSelect.appendChild(option); } else if (deviceInfo.kind === 'audiooutput') { option.text = deviceInfo.label || 'Speaker ' + (audioOutputSelect.length + 1); audioOutputSelect.appendChild(option); } else if (deviceInfo.kind === 'videoinput') { option.text = deviceInfo.label || 'Camera ' + (videoSelect.length + 1); videoSelect.appendChild(option); } ...}
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