in firestore/solution-deletes/public/index.js [35:45]
function setSignedIn(signedIn) {
if (signedIn) {
logMessage('Signed in.');
} else {
logMessage('Not signed in.');
}
setEnabled('input-delete', signedIn);
setEnabled('btn-delete', signedIn);
setEnabled('btn-signin', !signedIn);
}