Printing the binary value of a number in clojure

Question

We can represent the number `12` as `2r001100` in clojure. Is there a built-in function to print `2r001100` when given the number 12?

Accepted Answer

see cl-format

```
user=> (require '[clojure.pprint :refer (cl-format)])
nil
user=> (cl-format nil "2r~6,'0',B" 12)
"2r001100"
```

Solution