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"return `undefined`" -> "returns `undefined`"
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Peter Roche 2020-02-10 23:02:31 -07:00 • committed by GitHub
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1-js/04-object-basics/03-symbol/article.md
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@ -225,7 +225,7 @@ alert( Symbol.keyFor(sym) ); // name
alert( Symbol.keyFor(sym2) ); // id
```
The `Symbol.keyFor` internally uses the global symbol registry to look up the key for the symbol. So it doesn't work for non-global symbols. If the symbol is not global, it won't be able to find it and return `undefined`.
The `Symbol.keyFor` internally uses the global symbol registry to look up the key for the symbol. So it doesn't work for non-global symbols. If the symbol is not global, it won't be able to find it and returns `undefined`.
That said, any symbols have `description` property.