Javascript Bitwise Operator XOR
Introduction
The bitwise XOR operator is represented by a caret (^) and works on two values.
Here is the truth table for bitwise XOR:
| BIT FROM FIRST NUMBER | BIT FROM SECOND NUMBER | RESULT |
|---|---|---|
| 1 | 1 | 0 |
| 1 | 0 | 1 |
| 0 | 1 | 1 |
| 0 | 0 | 0 |
Bitwise XOR returns 1 only when exactly one bit has a value of 1.
If both bits contain 1, it returns 0.
To XOR the numbers 25 and 3 together, use the following code:
let result = 25 ^ 3; console.log(result); // 26
The result of a bitwise XOR between 25 and 3 is 26, as shown here:
XOR operation: 25 = 0000 0000 0000 0000 0000 0000 0001 1001 3 = 0000 0000 0000 0000 0000 0000 0000 0011 --------------------------------------------- XOR = 0000 0000 0000 0000 0000 0000 0001 1010
Four bits in each number are set to 1.
The first bit in both numbers is 1, so that becomes 0 in the result.
All of the other 1s have no corresponding 1 in the other number, so they are passed directly through to the result.
The binary code 11010 is equal to 26.
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