map-fns/mapMap/index.js

<h1 align="center"> <code>map-fns</code> </h1>

'use strict';

/**
 * Creates a new `map` populated with every key in the original `map` where the
 * value of each key `k` in the new map is the return value of `fn(map[k])`.
 *
 * @param map The original map.
 * @param fn A function that takes a single argument `map[k]` and returns the value of `newMap[k]`.
 * @returns A new `map` where `map[k]` is the result of `fn(map[k])`.
 */
function mapMap(map, fn) {
    var obj = {};
    var keys = Object.keys(map);
    for (var _i = 0, keys_1 = keys; _i < keys_1.length; _i++) {
        var key = keys_1[_i];
        obj[key] = fn(map[key]);
    }
    return obj;
}

module.exports = mapMap;