Does q have closures?

Not quite. q supports what it calls projections, which are functions whose arguments are partially specified. Projections can serve the same purpose as closures, albeit (and ironically, we might add) with some additional typing:

f: {[list; n] {[nn; item]
/ n cannot be referenced here,
/ so we pass it as nn
nn + item}[n; ] each list

See: Closure

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.

This work is licensed under a Creative Commons License.
The views and opinions expressed herein are those of the authors and do not necessarily reflect those of any other person or legal entity.
Kdb+ is the registered trademark of Kx Systems, Inc.