urbit/pub/doc/hoon/runes/ts/tsbr.md

tisbar, =|, %tsbr

Bunt to subject

=| is a synthetic hoon that pushes the bunt, or default value, of p on the subject and sends it to q.

Produces

Twig: [%tsbr p=tile q=twig]

Sample

p is a tile. q is a twig.

Tall form

=|  p
    q

Wide form

=|(p q)

Irregular form

None

Examples

~zod/try=> =|(a=@p a)
~zod

Here we use =| to generate the default value of a @p, which is ~zod.

/~zod/try=> 
    =|  a=[b=@ c=@]
    [+(b.a) +(+(c.a))]
[1 2]

Here we add the bunt of a=[b=@ c=@] and perform a very basic operation on it.