符號名稱前的符號（@@）處的雙重含義是什麼

Question

在ES6符號的上下文中，經常看到在符號名稱前放置了符號（@@）處的雙重符號。它只是另一種引用內置符號的方式嗎？但是，使用它的代碼會導致

SyntaxError: Invalid or unexpected token

Answer 1

此之前已經回答了：What does @@ ("at at") mean in ES6 JavaScript?

我要去離開這裏這篇文章太：https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Iteration_protocols

從規範總結報價：

Well-known symbols are built-in Symbol values that are explicitly referenced by algorithms of this specification. They are typically used as the keys of properties whose values serve as extension points of a specification algorithm. Unless otherwise specified, well-known symbols values are shared by all Code Realms (8.2).

我希望這可以回答你的問題:)