I want to implement a function that does the following:

• Takes an array of products as an argument
• returns a new array of products, each of which has a new groupId attribute.
• Different products will share the same groupId if they share the same common attributes, the attributes being determined by groupIfIdentical

See function skeleton here:

    function groupProductsBySharedAttributes(
      products: Product[],
      groupIfIdentical: (keyof Product)[],
      initialGroupId: string,
    ) {
      
    }

Products containing identical attributes should be grouped like this:

export function productsAreIdentical(
  prod1: Product,
  prod2: Product,
  groupIfIdentical: (keyof Product)[],
) {
  for (const key of groupIfIdentical) {
    if (prod1[key] !== prod2[key]) {
      return false
    }
    return true
  }
}

Example:

const prods = [{
  country: china,
  material: steel,
  sku: 1453
},
{
  country: china,
  material: steel,
  sku: 4874
},
{
  country: japan,
  material: steel,
  sku: 4874
},
]


const result = groupProductsBySharedAttributes(prods, ['country', 'material'], 1001)

result = [
  {
  country: china,
  material: steel,
  sku: 1453,
  groupId: 1001
},
{
  country: china,
  material: steel,
  sku: 4874,
  groupId: 1001
},
{
  country: japan,
  material: steel,
  sku: 4874,
  groupId: 1002
}
]