performance of OO dispatch in inner loops

Brendan Eich brendan at
Wed Mar 26 13:39:07 PDT 2008

On Mar 26, 2008, at 11:13 AM, Waldemar Horwat wrote:

> David Teller wrote:
>> ES4 has multi-methods, which are harder to optimize,
> Multi-methods are gone from ES4.

This is based on the row (numbered 109) of red interrupted so far  
only by Mozilla's green at

It's unrealistic to spend time on multimethods in the face of this  
red-colored rejection, but I wanted to point out that multimethod  
dispatch has been researched quite a bit in the '90s. See 


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