Performs a bitwise NOT (negation) on an expression.
result = ~ expression
All unary operators, such as the
~ operator, evaluate expressions as follows:
If applied to undefined or
nullexpressions, 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.
~operator looks at the binary representation of the values of the expression and does a bitwise negation operation on it.
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.
The following example illustrates use of the bitwise NOT (~) operator.
var temp = ~5;
The resulting value is -6, as shown in the following table.
|Expression||Binary value (two's complement)||Decimal value|
|5||00000000 00000000 00000000 00000101||5|
|~5||11111111 11111111 11111111 11111010||-6|
Supported in the following document modes: Quirks, Internet Explorer 6 standards, Internet Explorer 7 standards, Internet Explorer 8 standards, Internet Explorer 9 standards, Internet Explorer 10 standards, Internet Explorer 11 standards. Also supported in Store apps (Windows 8 and Windows Phone 8.1). See Version Information.