| 2. 5. 12. ~ (Bitwise NOT) |
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The bitwise NOT is represented by a tilde (~). |
The bitwise NOT is a three-step process: |
- The operand is converted to a 32-bit number.
- The binary form is converted into its one's complement.
- The one's complement is converted back to a floating-point number.
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var iNum1 = 25; //25 is equal to 00000000000000000000000000011001
var iNum2 = ~iNum1; //convert to 111111111111111111111111111100110
alert(iNum2); //outputs "-26"
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<html>
<script language="JavaScript">
<!--
// integer = 32-bit binary representation
// 2 = 00000000000000000000000000000010
// -3 = 11111111111111111111111111111101
// -2 = 11111111111111111111111111111110
// -1 = 11111111111111111111111111111111
document.write("~2 = ",(~2)); //Displays -3
-->
</script>
</html>
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