Function compareCollatorStrings

packages/intl-collator/compare.ts:547–564

(
  slots: IntlCollatorInternal,
  x: string,
  y: string
)

}

export function compareCollatorStrings(
  slots: IntlCollatorInternal,
  x: string,
  y: string
): number {
  // CompareStrings receives already-ToString-converted values from the
  // bound compare function and returns a negative/zero/positive Number.
  // https://tc39.es/ecma402/#sec-comparestrings
  const left = prepare(x, slots)
  const right = prepare(y, slots)
  const result = slots.numeric
    ? compareNumeric(left, right, slots)
    : comparePreparedStrings(left, right, slots)
  if (result) {
    return result
  }
  return compareCaseFirst(x, y, slots.locale, slots.caseFirst)
}