In LINQ, the extension methods defined on IEnumerable are useful, but not that interesting, because they are standard functionality in most modern languages. I also think the naming used (e.g. Where, Select) is unfortunate and it would be better to go with the naming used by other languages/frameworks that are much more standard, like filter() or map(). This implementation is also missing SelectMany (e.g. flatMap or bind), which is much more interesting than Select and Where (i.e. you can implement Select and Where in terms of SelectMany).

What makes LINQ special is IQueryable, e.g. the ability to transform a C# expression at runtime into something else, like a database query. Whenever I see article titles like "LINQ in X", I somehow know that it doesn't refer to IQueryable, which is a pity.

Anyway, these functions should be standard in any modern programming language and because Go is missing such standard functionality is one reason for why I don't like Go. Lack of generics has much to do with it, but also Go's interfaces are weaker than type-classes, combined with Google's disregard for everything we've learned about type-systems in the past 30 years (behold Dart's covariant generics) and so I do have reasons for not holding my breath waiting for a fix. Of course, Go is what many people want, so Go is what many people receive.