摘要：763 down vote accepted +50 What happens under the hood is that when .slice() is called normally, this is an Array, and then it just iterates over that 阅读全文

摘要：https://developer.mozilla.org/en US/docs/Web/JavaScript/Reference/Global_objects/Function/bind https://developer.mozilla.org/en US/docs/Web/JavaScript 阅读全文