shrub/pub/doc/hoon/runes/wt.md
2015-06-19 17:16:48 -04:00

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<div class="short">
`wut ? %wut`
============
Conditionals
------------
The `?` runes, with the exception of `?=`, produce conditional
statements. The `?` runes are the workhorse of control-flow.
There are three basic categories.
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#### If-then-else
[`?:`]() A natural `?` rune. The traditional if-than-else statement.
[`?.`]() Inversion of `?:`. An "unless" statement. Used to keep the code
flowing vertically.
<hr></hr>
#### Switches
[`?-`]() Tradional switch.
[`?+`]() Switch with a default return value.
<hr></hr>
#### Type Tests
[`?=`]() Tests if the [icon]() of [`++tile`]() `p` contains `q`.
<hr></hr>
<kids></kids>