I have the following array, which has the desired order.
main_array = ['a', 'b', 'c', 'd', 'e', 'f']
From a specific process, I get another array containing only 3 elements in main_array, but it may have the elements in any order.
subset_array = ['d', 'a', 'f']
From these two arrays, I need to create an array with the ranking from the subset_array. In other words, the subset_array has the ranked items, i.e., d has rank 1, a has rank 2, and f has rank 3. Using this information, I need to build the array in the order the values appear in the main_array.
For example, from the subset_array and main_array above, I need the following array.
desired_array = [2, 0, 0, 1, 0, 3]
How can I do this in TypeScript?
>Solution :
Simplest solution due to lucky requirements
const main_array = ["a", "b", "c", "d", "e", "f"];
const subset_array = ["d", "a", "f"];
const result = main_array.map((x) => subset_array.indexOf(x) + 1);
console.log(result);