Crystal core developer here. Happy to see Crystal's stdlib as an example for how you can grasp a language by looking into stdlib code. That's what I like a lot

Crystal core developer here. Happy to see Crystal's stdlib as an example for how you can grasp a language by looking into stdlib code. That's what I like a lot about Crystal. Even its stdlib easily readable. Arguably, this is somewhat deteriorating as algorithms get optimized. Readability and performance being in competition. I agree with some of concerns from many commenters. For many languages, especially those that have been around for a long time it's probably not a good idea to look at the stdlib. C++ or Java, no thanks. But with some languages like Crystal, Golang or Julia, it can be really very helpful to look at the stdlib implementation.