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I'm not familiar with Dart, but it seems like since it has object(map)/list literal syntax similar to Javascript, deserializing a simple object (no methods) from a string of characters would be trivial. JSON really is a Javascript killer feature imo.

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It does support deserialising into a map, but not a class. One of the selling points of Dart is classes; which can give code-completion, static analysis, etc.. This is all lost if you use maps instead of classes.

The top comment as well as the answer in the thread explains why.

Not really; that comment is incorrect. For example, in C# there's a JavaScriptSerializer.Deserialize<T>(string) method that does just this.

JSON isn't a feature of JavaScript. It's the other way around.

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