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A comment on Why Dart is not the language of the future.. Parent comment

Re:Why Dart is not the language of the future. by pjscott on Tuesday October 11, 2011 @02:38PM (#3099762)
Dart will not actually optimize based on type annotations; it will optimize based on watching what the actual internal types of objects are, and generating specialized code for the common cases. From an interview with Lars Bak:

http://gototoday.dk/2011/10/10/lars-bak-on-dart/

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Re:Why Dart is not the language of the future. by rayiner on Tuesday October 11, 2011 @02:41PM (#3099774)
This sounds exactly like Strongtalk's optional type system.
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