Identify Recyclable and Low-Fat Products

This challenge involves filtering a list of products based on two criteria: whether they are recyclable and whether they are low in fat. This is a common task in data management, particularly in inventory systems or consumer product databases, where specific product attributes need to be identified for targeted actions or analysis.

Problem Description

You are given a dataset representing various products, each with a unique identifier, a name, and two boolean attributes: is_recyclable and is_low_fat. Your task is to identify and return the products that satisfy both conditions: they must be recyclable AND low in fat.

Key Requirements

• Filter products based on the is_recyclable attribute being true.
• Filter products based on the is_low_fat attribute being true.
• Return only those products that meet both criteria.

Expected Behavior

The function or program should accept a collection of product objects (or equivalent data structure) and return a new collection containing only the products that are both recyclable and low-fat.

Edge Cases

• An empty input collection of products.
• Products where is_recyclable is true but is_low_fat is false.
• Products where is_recyclable is false but is_low_fat is true.
• Products where both is_recyclable and is_low_fat are false.

Examples

Example 1:

Input:
[
  { "product_id": 1, "name": "Milk", "is_recyclable": false, "is_low_fat": true },
  { "product_id": 2, "name": "Cereal", "is_recyclable": true, "is_low_fat": true },
  { "product_id": 3, "name": "Juice", "is_recyclable": true, "is_low_fat": false },
  { "product_id": 4, "name": "Butter", "is_recyclable": false, "is_low_fat": false }
]

Output:
[
  { "product_id": 2, "name": "Cereal", "is_recyclable": true, "is_low_fat": true }
]

Explanation:
Product with product_id 2 ("Cereal") is the only one where both "is_recyclable" and "is_low_fat" are true.

Example 2:

Input:
[
  { "product_id": 10, "name": "Cheese", "is_recyclable": false, "is_low_fat": true },
  { "product_id": 11, "name": "Yogurt", "is_recyclable": false, "is_low_fat": true },
  { "product_id": 12, "name": "Water Bottle", "is_recyclable": true, "is_low_fat": false }
]

Output:
[]

Explanation:
No product in this list satisfies both the recyclable and low-fat criteria.

Example 3: (Edge Case: Empty Input)

Input:
[]

Output:
[]

Explanation:
An empty input collection should result in an empty output collection.

Constraints

• The input will be a collection of product objects.
• Each product object will have the following properties:
  • product_id: An integer.
  • name: A string.
  • is_recyclable: A boolean.
  • is_low_fat: A boolean.
• The number of products in the input collection will be between 0 and 1000, inclusive.
• The length of product names will be between 1 and 50 characters, inclusive.

Notes

• The order of products in the output collection does not matter.
• You will need to iterate through the input collection and check the is_recyclable and is_low_fat attributes for each product.
• Consider how you will build the new collection of filtered products.