Operators
Descriptions of the operators you can find in Drizzle

Some operators have different meanings when used either infix or prefix notation.
For example, the - operator when used in infix notation denotes subtraction (2 - 1 # == 1) whereas with prefix notation gives negation (-1 # == -1).
The operator meanings in the lists below are infix notation unless stated otherwise.

  • +
    • Addition (infix)
      • 1 + 2 # == 3
    • Unary plus (prefix)
      • +1
  • -
    • Subtraction (infix)
      • 2 - 1 # == 1
    • Unary minus (prefix)
      • -1
  • *
    • Multiplication
      • 2 * 3 # == 6
  • /
    • Division
      • 5 / 2 # == 2.5
  • //
    • Integer Division (convert to integer by dropping the floating point)
      • 5 // 2 # == 2
  • %
    • Modulo (remainder of a division)
      • 5 % 2 # == 1

  • ==
    • Equality
      • 1 == 1 # true
  • !=
    • Inequality
      • 1 != 1 # false
  • is
    • Object equality
    • While == will check if two objects have the same value, is will check if they are the exact same object (i.e. two variables reference the same object, etc.)
      • true is true # true
  • not
    • Logical NOT
      • not false # true
  • and
    • Logical AND
      • true and 1 == 1 # true
  • or
    • Logical OR
      • true or false # true
  • <
    • Less Than
      • 2 < 3 # true
    • Class Inheritance
      • Dog < Animal
  • >
    • Greater Than
      • 2 > 3 # false
  • <=
    • Less Than or Equal To
      • 3 <= 3 # true
  • >=
    • Greater Than or Equal To
      • 3 >= 3 # true

  • =
    • Assignment
      • let x: int = 3
  • ->
    • Return Type Identifier
      • def test() -> int = return 3
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Operators
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