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Feb 10, 2025
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Update article.md #3815

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2 changes: 1 addition & 1 deletion 1-js/08-prototypes/04-prototype-methods/article.md
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Expand Up @@ -116,7 +116,7 @@ alert(obj[key]); // [object Object], not "some value"!

Here, if the user types in `__proto__`, the assignment in line 4 is ignored!

That could surely be surprising for a non-developer, but pretty understandable for us. The `__proto__` property is special: it must be either an object or `null`. A string can not become a prototype. That's why an assignment a string to `__proto__` is ignored.
That could surely be surprising for a non-developer, but pretty understandable for us. The `__proto__` property is special: it must be either an object or `null`. A string can not become a prototype. That's why assigning a string to `__proto__` is ignored.

But we didn't *intend* to implement such behavior, right? We want to store key/value pairs, and the key named `"__proto__"` was not properly saved. So that's a bug!

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