Bitwise NOT Operator (~)

  • Article

Performs a bitwise NOT (negation) on an expression.

result = ~ expression

Arguments

  • result
    Any variable.
  • expression
    Any expression.

Remarks

All unary operators, such as the ~ operator, evaluate expressions as follows:

  • If applied to undefined or null expressions, a run-time error is raised.
  • Objects are converted to strings.
  • Strings are converted to numbers if possible. If not, a run-time error is raised.
  • Boolean values are treated as numbers (0 if false, 1 if true).

The operator is applied to the resulting number.

The ~ operator looks at the binary representation of the values of the expression and does a bitwise negation operation on it. The result of this operation behaves as follows:

0101   (expression)
----
1010   (result)

Any digit that is a 1 in the expression becomes a 0 in the result. Any digit that is a 0 in the expression becomes a 1 in the result.

Requirements

Version 1

See Also

! Operator | Operator Precedence | Operator Summary