Add two numbers using bitwise operators in node js

Js program for Add two numbers using bitwise operators. Here problem description and other solutions.

// Node JS program for
// Add two numbers using of bitwise operators
class NumberAddition
{
	// Add two numbers
	addition(a, b)
	{
		// Display given numbers
		process.stdout.write("\n [(" + a + ") + (" + b + ")] ");
		// Auxiliary variable which are store the carry bit result
		var carry = 0;
		// Executing loop, until b value is not zero
		while (b != 0)
		{
			// Get carry bits of a & b
			carry = a & b;
			// Sum of bits of a ^ b
			a = a ^ b;
			// Shift the carry bit by one bit in left side
			b = carry << 1;
		}
		// Display add result
		process.stdout.write(" : " + a);
	}
}

function main()
{
	var task = new NumberAddition();
	// Test Case
	task.addition(8, -2);
	task.addition(5, 3);
	task.addition(-3, -5);
}
// Start program execution
main();

Output

 [(8) + (-2)]  : 6
 [(5) + (3)]  : 8
 [(-3) + (-5)]  : -8