Removing @@species

[Shu-yu Guo]

(Sorry for the duplicate, I realized I sent this first to an internal mailing list when I meant it for the public one.)

Hi all,

Mozilla recently broached the idea again of possibly removing @@species from the language. I found this idea very exciting, having considered the same thing in the past, given the amount of pain it has caused all browsers as well as the pain it continues to cause spec authors and maintainers for new features.

I think @@species was a terrible mistake, and may well be worth the high engineering cost it'll take for us to remove it from the web. I'm especially interested in compiler folks' thoughts here on the implications of removing @@species code, given that those paths have caused security issues in the past.

Please take a look: https://docs.google.com/document/d/1YDfpZDKEhiPWjcr4RPIpU3ZuHsccDg0k7QpKQBQKsLE/edit?usp=sharing

Cheers,

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       shu

[Michael Stanton]

This is really exciting, I think it would be great. Thanks for the write up! 😊

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Michael Stanton

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