�会抛出 TypeError，而是返回其数字值，并且可能导致精度损失）</li> <li>Symbol 抛出 TypeError。</li> <li>对象首先通过按顺序调用它们的 <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/toPrimitive" target="_blank" rel="noopener noreferrer">@@toPrimitive<span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fil