Understanding JavaScript Bitwise Operators
JavaScript offers a set of bitwise operators that manipulate individual bits within numbers. These operators enable efficient bit-level operations, allowing developers to perform tasks such as bit shifting, logical comparisons, and bit manipulation.
The bitwise operators in JavaScript include:
- x <<= y (x = x << y): Bitwise left shift. Shifts the bits of x left by y positions, effectively multiplying x by 2^y.
- x >>= y (x = x >> y): Bitwise right shift. Shifts the bits of x right by y positions, effectively dividing x by 2^y.
- x >>>= y (x = x >>> y): Unsigned bitwise right shift. Similar to >>=, but shifts a zero for the vacated bit positions.
- x &= y (x = x & y): Bitwise AND. Performs a logical AND operation on the bits of x and y, resulting in a value where a bit is set to 1 if it is 1 in both x and y.
- x ^= y (x = x ^ y): Bitwise XOR. Performs a logical XOR operation on the bits of x and y, resulting in a value where a bit is set to 1 if it is 1 in either x or y but not both.
- x |= y (x = x | y): Bitwise OR. Performs a logical OR operation on the bits of x and y, resulting in a value where a bit is set to 1 if it is 1 in either x or y.
These operators are powerful tools for performing bit-level manipulations in JavaScript programs, enabling developers to efficiently handle data at the bit level.
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