in lib/h3core.js [1295:1304]
export function getDirectedEdgeOrigin(edgeIndex) {
const [lower, upper] = h3IndexToSplitLong(edgeIndex);
const h3Index = C._malloc(SZ_H3INDEX);
try {
throwIfError(H3.getDirectedEdgeOrigin(lower, upper, h3Index));
return validateH3Index(readH3IndexFromPointer(h3Index));
} finally {
C._free(h3Index);
}
}