I see some discussion is happening - that's good. As I don't want to see the tremendous amount of work people put into value types and operator overloading go to waste - let's bring Brendan and Christian into this discussion and start with a link to Brendan's 2013 slides:
http://www.slideshare.net/BrendanEich/value-objects Let's consider value semantics for this. > I've been working on implementing operator overloading and would like to submit a proposal. > I think operator overloading would be a useful addition to the language. In particular I think it would be useful for defining operations on common mathematical object types such as complex numbers, vectors, matrices, and sets. > I've create a working prototype that consists of: > babel plugin that rewrites operators as function calls > a polyfill which defines these functions and which call the correct argument-specific function based on the arguments' prototypes > Function.defineOperator which can be used to define which function an operator should use for the specified types > "use overloading" directive which allows users to opt-in > More details can be found at kevinbarabash/operator-overloading. The babel plugin can be found at kevinbarabash/babel-plugin-operator-overloading. I also have a demo project at kevinbarabash/operator-overloading-demo. The design was inspired by some of the slides from www.slideshare.net/BrendanEich/js-resp.
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