ES 6:Symbol.iterator和@@ iterator之间的区别

我想知道在使用 @@ iterator 函数与 Symbol.iterator one:

I was wondering if there was a specific difference in implementing an iterator using the @@iterator function versus the Symbol.iterator one:

在MDN上有一个 Array.prototype。@@ iterator ,但在示例本身中,使用Symbol.iterator作为函数名。这只是更新的版本,而 @@ iterator 不再有效,还是两者都有效?

On MDN, there is a page on Array.prototype.@@iterator, yet in the examples itself, Symbol.iterator is used as the function name. Is this just the updated version and @@iterator is not valid anymore, or are both of them valid?

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