urbit/base/pub/doc/hoon/runes/bc/bctr.md
2015-04-29 18:48:45 -04:00

513 B

buctar $* %bctr

Default value

$*, is a synthetic rune that produces the bunt (default value) of a tile as a compile-time constant if possible. If it is not possible, then it is produced dynamically.

Produces

Twig: [%bctr p=tile]

Tall form

$*  p

Wide form

$*(p)

Irregular form

*p

Examples

~zod/try=> *@t
''
~zod/try=> *[@p @ux]
[~zod 0x0]
~zod/try=> *(list ,@)
~