Operators and Assignments - Bitwise Operators

• & AND, | OR, ^ exclusive OR
• used for operations on integer and boolean values (see logical bitwise operators)
• results are calculated bit-by-bit
• binary numeric promotion rules apply
• left associative
• order of precedence: &, ^, |

& AND operator

• returns a 1 if corresponding bits in both operands have a 1, otherwise returns a 0

  63    = 00000000 00000000 00000000 00111111
 252    = 00000000 00000000 00000000 11111100
          -----------------------------------
          00000000 00000000 00000000 00111100 -> 60

| OR operator

• returns a 0 if corresponding bits in both operands are 0, otherwise returns a 1

  63    = 00000000 00000000 00000000 00111111
 252    = 00000000 00000000 00000000 11111100
          -----------------------------------
          00000000 00000000 00000000 11111111 -> 255

^ exclusive OR

• returns a 0 if the corresponding bits of both operands are both 0 or both 1, otherwise returns a 1

  63    = 00000000 00000000 00000000 00111111
 252    = 00000000 00000000 00000000 11111100
          -----------------------------------
          00000000 00000000 00000000 11000011 -> 195

Also see

• Unary bitwise complement operator ~
  
• Logical (boolean) bitwise operators

Example Code

• TestBitwise.jsva
  

Tips

• precdence order is: & ^ |