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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 | 2x 1x 2x 4x | import { Mapper } from "@benneq/function";
/**
* Maps each element of a tuple individually using its own {@link Mapper}.
*
* @example
* ```ts
* const tuple = [1, "abc"];
*
* const mapper = mapTuple(
* (num) => num > 0,
* (str) => str.length,
* );
*
* const result = mapper(tuple);
*
* console.log(result); // [true, 3]
* ```
*
* @paramType TArgs - the type of the input tuple
* @paramType RArgs - the type of the mapped output tuple
* @param mappers - the {@link Mapper}s to use
* @returns the mapped tuple
*/
export const mapTuple =
<
TArgs extends unknown[],
RArgs extends { [index in keyof TArgs]: unknown }
>(mappers: { [index in keyof TArgs]: Mapper<TArgs[index], RArgs[index]> }) =>
(tuple: TArgs): RArgs => {
return mappers.map((mapper, index) => mapper(tuple[index])) as RArgs;
};
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