NOT(~) Bitwise Operator in JavaScript
Last Updated :
23 May, 2023
JavaScript NOT(~) Operator is used to invert the bits of a number. The operator is represented by “~” symbol. It is a unary operator since it requires only one operand to operate. There are various uses of the Bitwise NOT operator which include bit-masking, finding two’s complement as well as error correction.
Let’s look at the truth table below to better understand the output of the NOR operation.
Syntax:
a ~ b
Example 1: In this example, we will perform basic NOT operation on Numbers.
Javascript
console.log(~24);
console.log(~10);
console.log(~-10);
|
Output:
-25
-11
9
Example 2: In this example, we will use the Bitwise NOT operator to find Two’s Complement of a number.
Javascript
function twoComplement(n) {
let j = ~(n.toString(2)) + 1;
return j;
}
console.log(twoComplement(2));
console.log(twoComplement(-2));
|
Output: To find the two’s complement we first convert the decimal number to binary then invert the bits using NOT Operator and add 1 afterward.
-10
10
Supported Browsers:
- Chrome
- Edge
- Firefox
- Opera
- Safari
We have a complete list of JavaScript Bitwise Operators, to check those please go through, the JavaScript Bitwise Operators article
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