1. Arithmetic Operations:let a = 5, b = 10;console.log(`Before: a = ${a}, b = ${b}`);a = a + b; // a = 15b = a - b; // b = 5a = a - b; // a = 10console.log(`After: a = ${a}, b = ${b}`); 2. XOR:let a = 5, b = 10;console.log(`Before: a = ${a}, b = ${b}`);a = a ^ b;b = a ^ b;a = a ^ b;console.log(`After: a = ${a}, b = ${b}`); 3. ES6let a = 5, b = 10;console.log(`Before: a = ${a}, b = ${b}`);[a, b] ..