Bitwise and shift operators
You can manipulate the individual bits of numbers in Dart. Usually, you'd use these bitwise and shift operators with integers.
| Operator | Meaning | |
& | AND | |
| ` | ` | OR |
^ | XOR | |
~expr | Unary bitwise complement (0s become 1s; 1s become 0s) | |
<< | Shift left | |
>> | Shift right | |
>>> | Unsigned shift right |
Here's an example of using bitwise and shift operators:
final value = 0x22;
final bitmask = 0x0f;
assert((value & bitmask) == 0x02); // AND
assert((value & ~bitmask) == 0x20); // AND NOT
assert((value | bitmask) == 0x2f); // OR
assert((value ^ bitmask) == 0x2d); // XOR
assert((value << 4) == 0x220); // Shift left
assert((value >> 4) == 0x02); // Shift right
// Shift right example that results in different behavior on web
// because the operand value changes when masked to 32 bits:
assert((-value >> 4) == -0x03);
assert((value >>> 4) == 0x02); // Unsigned shift right
assert((-value >>> 4) > 0); // Unsigned shift right