Reverse actual bits of the given number | function to reverse bits of a number ; traversing bits of ' n ' from the right ; bitwise left shift ' rev ' by 1 ; if current bit is '1' ; bitwise right shift ' n ' by 1 ; required number ; Driver code
function reverseBits ( n ) { let rev = 0 ; while ( n > 0 ) { rev <<= 1 ; if ( ( n & 1 ) == 1 ) rev ^= 1 ; n >>= 1 ; } return rev ; } let n = 11 ; document . write ( reverseBits ( n ) ) ;