urbit/pub/doc/hoon/runes/wt/wtpm.md

wutpam, ?&, %wtpm

AND

?& is a synthetic hoon that computes the "and" of the loobeans in p. ?& is commonly used as a control-flow mechanism.

Produces

Twig: [%wtpm p=tusk]

Sample

p is a ++tusk, a list of twigs.

Tall form

?&  i.p
    i.t.p
    i.t.t.p
==

Wide form

?&(i.p i.t.p i.t.t.p)

Irregular form

&(i.p i.t.p i.t.t.p)

Examples

~zod/try=> ?&(& &)
%.y
~zod/try=> &(& &)
%.y
~zod/try=> &(& |)
%.n
~zod/try=> &((gth 2 1) |)
%.n
~zod/try=> &((gth 2 1) &)
%.y