fz-lang/docs/en/reference/operators.md

Operators

FZLang supports arithmetic, comparison, logical, and unary operations. During execution, a binary operation takes two values from the stack and puts its result back. A unary operation takes one value from the stack and puts its result back.

Arithmetic operations

Operation	Supported types	Description
N + N	all numeric types	Add two operands
N - N	all numeric types	Subtract the right operand from the left
N * N	all numeric types	Multiply two operands
N / N	all numeric types	Divide the left operand by the right
N % N	all numeric types	Remainder of the left operand divided by the right
N ^ N	all numeric types	Raise the left operand to the power of the right
-N	all numeric types	Negate the operand

Comparison operations

Operation	Supported types	Description
N == N	all numeric types, booleans, objects, strings	Check whether the operands are equal
N != N	all numeric types, booleans, objects, strings	Check whether the operands are unequal
N > N	all numeric types	Check whether the left operand is greater than the right
N >= N	all numeric types	Check whether the left operand is greater than or equal to the right
N < N	all numeric types	Check whether the left operand is less than the right
N <= N	all numeric types	Check whether the left operand is less than or equal to the right
!N	booleans	Invert the operand

Important: Comparing objects with == or != compares their addresses, not their values.

Logical operations

Operation	Supported types	Description
N && N	booleans	Logical AND of two operands
`N		N`