feat: add bitwise operator

Author: ExploitEngineer

part1 (Basics)/14_bitwise.js

@@ -0,0 +1,63 @@
+// Bitwise Operator
+/*
+<<      Shifts the bits to left
+>>      Shifts the bits to right
+~       Bitwise inversion (one's complement)
+&       Bitwise logical AND
+|       Bitwise logical OR
+^       Bitwise exclusive or
+*/
+
+/*
+<<  (Left Shift)
+Shifts bits to the left, adding zeros from the right.
+Example:
+5 << 1 = 10
+(5 in binary: 0101 → shifted left: 1010 → 10 in decimal)
+*/
+console.log(5 << 1); // Output: 10
+
+/*
+>>  (Right Shift)
+Shifts bits to the right, keeping the sign (for signed numbers).
+Example:
+10 >> 1 = 5
+(10 in binary: 1010 → shifted right: 0101 → 5 in decimal)
+*/
+console.log(10 >> 1); // Output: 5
+
+/*
+~  (Bitwise NOT)
+Inverts the bits (one's complement).
+Example:
+~5 = -6
+(5 in binary: 0000000000000101 → inverted: 1111111111111010 → -6 in decimal)
+*/
+console.log(~5); // Output: -6
+
+/*
+&  (Bitwise AND)
+Compares each bit of two numbers, returns 1 only if both bits are 1.
+Example:
+5 & 3 = 1
+(5: 0101, 3: 0011 → result: 0001)
+*/
+console.log(5 & 3); // Output: 1
+
+/*
+|  (Bitwise OR)
+Compares each bit, returns 1 if either bit is 1.
+Example:
+5 | 3 = 7
+(5: 0101, 3: 0011 → result: 0111)
+*/
+console.log(5 | 3); // Output: 7
+
+/*
+^  (Bitwise XOR)
+Returns 1 if bits are different, 0 if same.
+Example:
+5 ^ 3 = 6
+(5: 0101, 3: 0011 → result: 0110)
+*/
+console.log(5 ^ 3); // Output: 6