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Published on Apr 27, 2010
Google Tech Talk April 20, 2010
Presented by Tom Van Cutsem.
The second part of the talk introduces a traits library for ECMAScript 5. Traits are a more robust alternative to multiple inheritance or mixin-based composition. Based on ECMAScript 5's new "property descriptor" API, we built a portable lightweight library that supports trait-based object composition. We discuss the limitations of introducing traits using a library approach and highlight the benefits of direct support for traits in ECMAScript-Harmony.