# JS 中运算精读问题

const count = (value, precision = 10) => {
  if (isNaN(value)) return value;
  return Number(value.toFixed(precision));
}

console.log(count(0.1 + 0.2));
console.log(count(1 - 0.9));
console.log(count(1 / 3));
console.log(count(0.585 + 0.75));