The items will have a `key` being the name and a `value` that is the amount in grams.
You have a grocery cart with some items you need. The item's name if the `key`, and the `value` will represent nutrition facts per 100 grams.
Create 3 functions that works like the `.filter`, `.map` and `.reduce` array method but for the values of your grocery cart.
- `filterValues` filters the values of your grocery cart.
- `mapValues` changes the values of your grocery cart.
For the above function the callback function should accepts only the element in the arguments, this being the current element being processed.
- `reduceValues` that will reduce your grocery cart. The callback function should accepts only the **accumulated value** and the **current value**.
Create 3 functions that work like the `.filter`, `.map` and `.reduce` array methods, for the values in your grocery cart object. You can see their function names and how they work in the examples.