Racket "wat"s

inspired by Gary Bernhardt's original "Wat" talk

This repository is a work in progress. If you have anything new wat's to contribute, or think one should be removed, please create a pull request!

List of wat's

• Numbers are mutable

Welcome to Racket v7.5.0.900.

(immutable? 5) #f

- Unquote can be weird:

  ```racket
Welcome to Racket v7.5.0.900.
> `(4 . ,(+ 1 2))
(4 . 3)
> '(4 . ,(+ 1 2))
'(4 unquote (+ 1 2))

• Argument order for collections:

Welcome to Racket v7.5.0.900.

(member 'x (list 'x 'y)) #t (vector-member 'x (vector 'x 'y)) #t (set-member? (set 'x 'y) 'x) #t

- `gensym` is special

  ```racket
Welcome to Racket v7.5.0.900.
> (define x (gensym))
> x
'g78
> (eq? x 'g78)
#f

• hash-map doesn't return a hash

Welcome to Racket v7.5.0.900.

(map list '(1 2 3)) '((1) (2) (3)) (vector-map list #(1 2 3)) '#((1) (2) (3)) (hash-map (hash 'x 1 'y 2) list) '((x 1) (y 2)) ; that's not a hash map...

- **TODO** more