Very cool! I wrote (and am working on) a K interpreter in JavaScript called &quot;oK&quot;. Might be useful to compare notes:<p><a href="https:&#x2F;&#x2F;github.com&#x2F;JohnEarnest&#x2F;ok" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;JohnEarnest&#x2F;ok</a><p>I&#x27;ll have a deeper look at Klong&#x27;s implementation when I have time to see if there are tricks worth borrowing.