Logical Operators

Jyro uses word-based logical operators rather than symbols.

Operator	Description
`not`	Logical NOT (unary, right-associative)
`and`	Logical AND (short-circuit, left-associative)
`or`	Logical OR (short-circuit, left-associative)

Short-Circuit Evaluation

and evaluates the right operand only if the left operand is truthy
or evaluates the right operand only if the left operand is falsy

This is commonly used for null-safe property access:

if Data.user is not null and Data.user.active then
    # Safe - Data.user.active is only evaluated when Data.user exists
end

Return Values

Logical operators return one of their operand values, not necessarily a boolean:

and returns the first falsy operand, or the last operand if all are truthy
or returns the first truthy operand, or the last operand if all are falsy
not always returns a boolean

"hello" and "world"          # "world" (both truthy → returns last)
null and "skipped"            # null (first falsy → returns it)
null or "fallback"            # "fallback" (first falsy → returns second)
"first" or "second"           # "first" (first truthy → returns it)
not null                      # true
not "hello"                   # false

See Truthiness for the complete rules on which values are truthy and falsy.