Operator

An operator is a symbol or keyword in source code that represents a built-in function.

Related concepts:  Function

Closest Wikipedia entry:  Operator (computer programming)

Misconceptions about Operator

30 documented Misconceptions

CompareBooleanToConstant

To test whether an expression evaluates to true or false, one must compare it to a constant

EqualityOperatorComparesOnlyTypes

() = () compares only the types of its operands