In this small interview project, you will implement a shopping cart!

The cart's behavior is specified in shopping_cart.test.js.

The cart's implementation is stubbed out in shopping_cart.js.

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To complete the exercise, please

• download a zip copy of this repository
• implement the shopping cart functions in shopping_cart.js
• verify that all tests pass
• zip up your solution
  • IMPORTANT: please rename the extension from zip to anything else before submitting (Ki Mobility's mail servers will reject files with the .zip extension)
• submit your solution to dpackard@kimobility.com CC cbudd@kimobility.com

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To run the tests:

npm install
npm test

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example: To make this test pass:

test('New cart should be empty', () => {
  const cart = ShoppingCart();
  expect(cart.isEmpty()).toBe(true);
});

you could implement the isEmpty() method as follows:

isEmpty: function(){ 
  return cart_items.length === 0;
},

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A successful implementation should result in the following test results: