Rediscovering JavaScript: ES6, ES7 & ES8/

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Solution Review: Purchase Items

Solution Review: Purchase Items

Let’s take a look at the solution to the "Purchase Items" problem.

We'll cover the following...

Task 1

Let’s dive into the solution to task 1.

Solution

Solution
Exercise
const purchaseItems = function(essential1, essential2, ...optionals) { 
  console.log(essential1 + ', ' + essential2 + ', ' + optionals.join(', '));
};
purchaseItems('bread', 'milk');
purchaseItems('bread', 'milk', 'jelly');
const mustHaves = ['bread', 'milk'];
const andAlso = ['eggs', 'donuts', 'tea'];
//call purchaseItems so it prints bread, milk, eggs, donuts, tea
purchaseItems(...mustHaves, ...andAlso);

Explanation

The first task requires us to add the third function call so that output is bread, milk, eggs, donuts, tea.

  • We have two arrays: mustHaves defined at line 8 and andAlso defined at line 9.

  • ...