Bitwise Operators
JavaScript Bitwise Operators
Bit operators work on 32 bits numbers. Any numeric operand in the operation is converted into a 32 bit number. The result is converted back to a JavaScript number.
| Oper | Name | Example | Same as | Result | Decimal | Try it |
|---|---|---|---|---|---|---|
| & | AND | x = 5 & 1 | 0101 & 0001 | 0001 | 1 | Try it » |
| | | OR | x = 5 | 1 | 0101 | 0001 | 0101 | 5 | Try it » |
| ~ | NOT | x = ~ 5 | ~0101 | 1010 | 10 | Try it » |
| ^ | XOR | x = 5 ^ 1 | 0101 ^ 0001 | 0100 | 4 | Try it » |
| << | Left shift | x = 5 << 1 | 0101 << 1 | 1010 | 10 | Try it » |
| >> | Right shift | x = 5 >> 1 | 0101 >> 1 | 0010 | 2 | Try it » |
| >>> | Unsigned right | x = 5 >>> 1 | 0101 >>> 1 | 0010 | 2 | Try it » |
Note
The table above uses 4 bits unsigned number. Since JavaScript uses 32-bit signed numbers,
~ 5 will not return 10. It will return -6.
~00000000000000000000000000000101 (~5)
will return
11111111111111111111111111111010 (-6)
Browser Support
Bitwise Operators is an ECMAScript1 (JavaScript 1997) feature.
It is supported in all browsers:
| Chrome | Edge | Firefox | Safari | Opera | IE |
| Yes | Yes | Yes | Yes | Yes | Yes |
