一个 bug。
一个你可以检查的补丁。

// Parse one money amount into integer cents, or throw.
function amountToCents(amount) {
  let text;

  if (typeof amount === "number") {
    // NaN, Infinity, and negatives are invalid amounts.
    if (!Number.isFinite(amount) || amount < 0) {
      throw new TypeError("invalid amount");
    }
    // The amount itself must stay inside the safe integer range.
    if (amount > Number.MAX_SAFE_INTEGER) {
      throw new RangeError("amount overflow");
    }
    text = amount.toString();
    // Exponent form means more than two decimal places.
    if (/[eE]/.test(text)) {
      throw new TypeError("invalid amount");
    }
  } else if (typeof amount === "string") {
    // Plain non-negative decimals only; blank and other text are rejected.
    if (!/^\d+(?:\.\d+)?$/.test(amount)) {
      throw new TypeError("invalid amount");
    }
    text = amount;
  } else {
    throw new TypeError("invalid amount");
  }

  const dot = text.indexOf(".");
  const whole = dot === -1 ? text : text.slice(0, dot);
  const frac = dot === -1 ? "" : text.slice(dot + 1);
  if (frac.length > 2) {
    throw new TypeError("invalid amount");
  }

  const digits = whole.replace(/^0+/, "") || "0";
  if (digits.length > 16) {
    throw new RangeError("amount overflow");
  }
  const dollars = Number(digits);
  if (!Number.isSafeInteger(dollars)) {
    throw new RangeError("amount overflow");
  }

  const centsPart = Number(frac.padEnd(2, "0"));
  // This row's cent value must also be a safe integer.
  if (dollars > Math.floor((Number.MAX_SAFE_INTEGER - centsPart) / 100)) {
    throw new RangeError("amount overflow");
  }
  return dollars * 100 + centsPart;
}

// Sum paid orders in cents and return a currency number.
export function paidTotal(orders) {
  if (!Array.isArray(orders)) {
    throw new TypeError("orders must be an array");
  }

  let totalCents = 0;
  for (const order of orders) {
    // Skip non-paid rows and do not validate their amounts.
    if (!order || order.status !== "paid") {
      continue;
    }

    const cents = amountToCents(order.amount);
    if (totalCents > Number.MAX_SAFE_INTEGER - cents) {
      throw new RangeError("sum overflow");
    }
    totalCents += cents;
  }

  return totalCents / 100;
}