Md. Jamal Uddin jaamaalxyz

	const assert = require('assert');
	const operations = require('./operations');

	// Test case for add()
	it('should calculates the sum of 1 and 3', () => {
	assert.equal(operations.add(1, 3), 4)
	});

	// Test case for add()
	it('should return -2 to for added -1 and -1', () => {

	// Declare a Man class
	class Man {
	hand(substance) { return `I grab the ${substance}` };

	leg(path) { return `i go to ${path}` };

	mouth(food) { return `I eat ${food}` };

	eye(object) { return `I watch ${object}` };
	}

	// Function declaration way
	function secondArea(length, width) {
	return length * width;
	}
	console.log(secondArea(20, 10)); // 200


	//Using ES6 Arrow Function
	const thirdArea = (length, width) => length * width;
	console.log(thirdArea(20, 10)); // 200

	// Declare length and width
	const length = 5;
	const width = 10;

	// calculate area
	const firstArea = length * width;
	console.log(firstArea); // 50

	var Person = function(firstAndLast) {
	let firstName = firstAndLast.split(' ')[0];
	let lastName = firstAndLast.split(' ')[1];

	this.getFirstName = function(){
	return firstName;
	};

	this.getLastName = function(){
	return lastName;

	const nahid = new Man()

	console.log(nahid.mouth('rice')); // I eat rice
	console.log(nahid.eye('a drama')); // I watch a drama

	console.log(jamal.mouth('burger')); // I eat burger
	console.log(jamal.eye('TV')); // I watch TV
	console.log(jamal.leg('office')); // I go to office

	// Creating jamal object from Man() class
	const jamal = new Man();