Santa Claus 🎅 is checking his workshop inventory to prepare gift delivery. The elves have recorded the toys in an array of objects, but the information is a bit disorganized. You need to help Santa organize the inventory.
You will receive an array of objects, where each object represents a toy and has the properties:
name: the name of the toy (string).quantity: the available quantity of that toy (integer).category: the category to which the toy belongs (string).
Write a function that processes this array and returns an object that organizes the toys as follows:
- The keys of the object will be the categories of toys.
- The values will be objects that have the toy names as keys and the total quantities of each toy in that category as values.
- If there are toys with the same name in the same category, you must sum their quantities.
- If the array is empty, the function should return an empty object {}.
const inventory01 = [
{ name: 'doll', quantity: 5, category: 'toys' },
{ name: 'car', quantity: 3, category: 'toys' },
{ name: 'ball', quantity: 2, category: 'sports' },
{ name: 'car', quantity: 2, category: 'toys' },
{ name: 'racket', quantity: 4, category: 'sports' },
]
organizeInventory(inventory01)
// Expected result:
// {
// toys: {
// doll: 5,
// car: 5
// },
// sports: {
// ball: 2,
// racket: 4
// }
// }
const inventory02 = [
{ name: 'book', quantity: 10, category: 'education' },
{ name: 'book', quantity: 5, category: 'education' },
{ name: 'paint', quantity: 3, category: 'art' },
]
organizeInventory(inventory02)
// Expected result:
// {
// education: {
// book: 15
// },
// art: {
// paint: 3
// }
// }