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What Is The Specific Impact Of Assigning __proto__ In Each Browser?

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This is for a very specific use case. And this is all in typescript (which for this use case I think it has no impact but I mention it in case it does). We have our main code and a

Solution 1:

And the answer is - bad in Chrome & Opera, very bad in Firefox, horribly bad in IE. We did performance testing of copy constructors vs setting the prototype.

Details here:

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