Function looksLikeFraction

src/utils/string.js:191–197

* Check whether a value looks like a Fraction (unsafe duck-type check) * @param {*} value * @return {boolean}

(value)

 * @return {boolean}
 */
function looksLikeFraction (value) {
  return (value &&
      typeof value === 'object' &&
      typeof value.s === 'bigint' &&
      typeof value.n === 'bigint' &&
      typeof value.d === 'bigint') || false
}

/**
 * Compare two strings