miniblog.

One underrated perk of string interpolation: it arguably simplifies type checking. If you have a format() function you need to support variadic functions and even format specifiers in the type system.

One underrated feature of Go and Julia: methods are defined without extra indentation. In e.g. Java they're inside the the class at the next indentation level. Methods are so common and indentation is a finite resource. "Top level method" syntax is surprising at first though.

Underrated perk of JSON: it's easy to programmatically make changes to a file made by a human. Very few other formats have this advantage. `cargo add` took a bunch more implementation work than `npm install`, because preserving TOML comments takes more work.