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Elie 2018-12-19 00:16:54 +02:00 • committed by GitHub
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1-js/04-object-basics/01-object/article.md
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@ -220,7 +220,7 @@ alert(obj.__proto__); // [object Object], didn't work as intended
As we see from the code, the assignment to a primitive `5` is ignored.
That can become a source of bugs and even vulnerabilies if we intend to store arbitrary key-value pairs in an object, and allow a visitor to specify the keys.
That can become a source of bugs and even vulnerabilities if we intend to store arbitrary key-value pairs in an object, and allow a visitor to specify the keys.
In that case the visitor may choose "__proto__" as the key, and the assignment logic will be ruined (as shown above).