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

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2015-02-18 06:03:21 +03:00
[wutbar, `?|`, %wtbr](#wtbr)
============================
OR
`?|` is a synthetic hoon that computes the "or" of the loobeans in `p`.
`?|` is commonly used as a control-flow mechanism.
Produces
--------
Twig: `[%wtbr p=tusk]`
Sample
------
`p` is a [`++tusk`](), a list of [twig]()s.
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)
%.y
~zod/try=> |((gth 2 1) |)
%.y
~zod/try=> |((gth 1 2) |)
%.n
~zod/try=> |((gth 2 1) &)
%.y
~zod/try=> |((gth 1 2) &)
%.y