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Alexander 2017-09-28 01:18:05 +03:00 • committed by GitHub
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1-js/04-object-basics/05-object-toprimitive/article.md
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@ -213,7 +213,7 @@ For instance:
```smart header="Historical notes" ```smart header="Historical notes"
For historical reasons, methods `toString` or `valueOf` *should* return a primitive: if any of them returns an object, then there's no error, but that object is ignored (like if the method didn't exist). For historical reasons, methods `toString` or `valueOf` *should* return a primitive: if any of them returns an object, then there's no error, but that object is ignored (like if the method didn't exist).
In contrast, `Symbol.toPrimitive` *must* return an primitive, otherwise there will be an error. In contrast, `Symbol.toPrimitive` *must* return a primitive, otherwise, there will be an error.
``` ```
## Summary ## Summary