An operator is a symbol or word that represents an operation to be performed on one or more values.
| Operator symbol
|
Operator type
|
Type of operands
|
| + - * /
|
numeric
|
number, float
|
| |
|
bitwise or
|
number
|
| &
|
bitwise and
|
number
|
| mod
|
numeric
|
number
|
| = <> > < >= <=
|
relational
|
number, string, char, boolean, float
|
| and or not
|
boolean
|
boolean
|
| +
|
concatenate string
|
string, char, number, float, boolean
|
- The operands of an operator must be of the same data type. Operands are casted automatically for string concatenations.
- mod is the Modulo operator. The left operand of the
mod operator is the dividend; the right operand is the divisor.
- You cannot use arrays without an index in an expression.
- Expressions with multiple
and
operators (or
or operators) are evaluated from left to right. Evaluation for and/or stops as soon as the result is known.