bool
Boolean values: true and false.
Constructor
Calling bool converts a value to a boolean based on its truthiness.
assert_eq (bool 0) false
assert_eq (bool 1) true
assert_eq (bool nil) false
assert_eq (bool "") false
assert_eq (bool "hello") true
Only false and nil are falsy. All other values, including 0 and "",
are truthy when used in boolean context (e.g. if conditions). Calling bool
explicitly converts based on the value's own truthiness rules: zero numbers and
empty strings are false.
Operators
| Operator | Description |
|---|---|
!x |
Logical NOT |
&& |
Short-circuit AND (returns first falsy operand, or last) |
\|\| |
Short-circuit OR (returns first truthy operand, or last) |