In my experience, one-character variables are serviceable, even preferable, when you're piping data, like Streams in java, or all the equivalent functions in ru

In my experience, one-character variables are serviceable, even preferable, when you're piping data, like Streams in java, or all the equivalent functions in rust. So long as the starting input's type is clear, the "capturing" variable can be just the first letter of the type.