interview

slice.js

// OLD FUNCTION
const findSKUFromVariant = (productItem, variant) => {
    return productItem.skus.find(sku => sku.variant.color === variant.color)
};



// NEW FUNCTION
const findSKUFromVariant = (productItem, variant) => {
  // compare sku item based on new varient and previously set varients
  function compareVarient(item, selectedItem) {
    const allVarients = Object.keys(selectedItem);

    for (let i = 0; i < allVarients.length; i++) {
      const category = allVarients[i];
      if (item[category] !== selectedItem[category]) {
        return false;
      }
    }
    return true; // all categories match (both color and size)
  }

  return productItem.skus.find((sku) => {
    return compareVarient(sku.variant, variant);
  });
};