Filters a 2D array of data objects by a keyword.

filterDataByKey2D.ts

/*
That function make filter by this map.

[
    {
        "si": [
            {
                "millimeter": "0.001"
            }
        ]
    },
    {
        "extra": [
            {
                "megameter": "1000000"
            }
        ]
    }
]
*/

/**
 * Represents a data type with key-value pairs, where the value is an array of the same data type.
 */
type DataType = {
  [key: string]: DataType[];
};

/**
 * Filters a 2D array of data objects by a keyword.
 * 
 * @param data - The array of data objects to filter.
 * @param keyword - The keyword to filter by.
 * @returns An array of filtered data objects.
 */
export default function filterDataByKey2D(data: DataType[], keyword: string) {
  return data
    .map((obj) => {
      // Get the category key.
      const categoryKey = Object.keys(obj)[0];
      // Get the items of the category.
      const items = obj[categoryKey as keyof typeof obj];
      // Filter the items by the keyword.
      const filteredItems = items.filter((item: {}) => {
        return Object.keys(item).some((key) => key.includes(keyword));
      });
      // Return the category key and the filtered items.
      return filteredItems.length > 0 ? { [categoryKey]: filteredItems } : null;
    })
    .filter((obj) => obj !== null);
}