// 易错点5：忘记push当前索引 → 前面的位置无法获取当前身高的参考，结果全错
Function.prototype.toString() — MDN Web Docs
。业内人士推荐服务器推荐作为进阶阅读
// Stateless transform — a pure function
In total, directors generally spend between one and three hours a week on activities relating to their position on the Board of Directors.