@jasmith79/sequable/dist/esm/map.mjs

Library functions for working with generators

import { toIterator } from "./sequable.mjs";
/**
 * Maps the given function over the given Iterator, Iterable, or generator
 * function.
 *
 * @param f The transformation function.
 * @param sequable The Iterator, Iterable, or generator function sequence
 * to tranform.
 */
export function* map(f, sequable) {
    const iter = toIterator(sequable);
    let { value, done } = iter.next();
    while (!done) {
        yield f(value);
        ({ value, done } = iter.next());
    }
    if (value !== undefined)
        return f(value);
}