Function sign

packages/db/tests/comparison.property.test.ts:60–64

(n: number)

// Helper to get sign of a number
const sign = (n: number): -1 | 0 | 1 => {
  if (n < 0) return -1
  if (n > 0) return 1
  return 0
}

/**
 * Check antisymmetry property: sign(compare(a, b)) === -sign(compare(b, a))