|Postfix||Left to right|
|Unary||Right to left|
|Multiplicative||Left to right|
|Additive||Left to right|
|Shift||Left to right|
|Relational||Left to right|
|Equality||Left to right|
|Bitwise and||Left to right|
|Bitwise xor||Left to right|
|Bitwise or||Left to right|
|Logical and||Left to right|
|Logical or||Left to right|
|Assignment||Right to left|
|Comma||Left to right|
Programming in Scala gives the following outline based on the 1st character in the operator. E.g.
> is the 1st character in the operator
|(all other special characters)|
|(all assignment operators)|
The one exception to this rule concerns assignment operators, e.g.
*=, etc. If an operator ends with an equal character (=) and is not one of the comparison operators
!=, then the precedence of the operator is the same as simple assignment. In other words, lower than that of any other operator.