FWIW if you are looking for examples of WebAssembly written in the textual format, take a look at:

https://raw.githubusercontent.com/soegaard/webracket/refs/he...

As a small example, here is a definition of `$car` which extracts the first value from a pair.

    (func $car (type $Prim1) 
               (param $v (ref eq)) 
               (result (ref eq))
      (if (result (ref eq)) 
          (ref.test (ref $Pair) (local.get $v))
          (then (struct.get $Pair $a (ref.cast (ref $Pair) (local.get $v))))
          (else (call $raise-pair-expected (local.get $v))
                (unreachable))))