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Editorial Team
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Asked: 2026-05-28T07:33:22+00:00

Now this has no practical implications at all, but I am curious about this

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Now this has no practical implications at all, but I am curious about this little quirk I stumbled upon.

Basically, in Chrome’s developer console, this

toString()

returns [object Object], whereas this

this.toString()

returns [object DOMWindow].

As far as I know, this only happens from the console, as can be seen on this jsFiddle. Someone on ##javascript found this link explaining where the function comes from. However, it doesn’t explain the discrepancy there is in the behavior when used within or outside the console.

So why do toString() and this.toString() produce different results in Chrome’s console?

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1 Answer

  1. Editorial Team

    WebKit happened to use wrong context for global calls in the console.

    (Chrome 14):

    > this
DOMWindow
> this.toString()
"[object DOMWindow]"
> toString()
"[object Object]"
> valueOf()
CommandLineAPI

    I think this has been fixed over here

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