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public/subjects/manipulate-values/README.md

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Manipulate Values

Instructions

Go buy groceries!!!

You have a grocery cart with some items you need. The items will have a key being the name and a value that is the amount in 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.
  • reduceValues that will reduce your grocery cart.

You will have a small database to help you with the groceries.

Notions

Code provided

all code provided will be added to your solution and doesn't need to be submited.

// small database with nutrition facts, per 100 grams
// prettier-ignore
const nutritionDB = {
    tomato:  { calories: 18,  protein: 0.9,   carbs: 3.9,   sugar: 2.6, fiber: 1.2, fat: 0.2   },
    vinegar: { calories: 20,  protein: 0.04,  carbs: 0.6,   sugar: 0.4, fiber: 0,   fat: 0     },
    oil:     { calories: 48,  protein: 0,     carbs: 0,     sugar: 123, fiber: 0,   fat: 151   },
    onion:   { calories: 0,   protein: 1,     carbs: 9,     sugar: 0,   fiber: 0,   fat: 0     },
    garlic:  { calories: 149, protein: 6.4,   carbs: 33,    sugar: 1,   fiber: 2.1, fat: 0.5   },
    paprika: { calories: 282, protein: 14.14, carbs: 53.99, sugar: 1,   fiber: 0,   fat: 12.89 },
    sugar:   { calories: 387, protein: 0,     carbs: 100,   sugar: 100, fiber: 0,   fat: 0     },
    orange:  { calories: 49,  protein: 0.9,   carbs: 13,    sugar: 9,   fiber: 0.2, fat: 0.1   },
  }