add hw2

node_modules/ramda/es/map.js

@@ -0,0 +1,66 @@
+import _curry2 from "./internal/_curry2.js";
+import _dispatchable from "./internal/_dispatchable.js";
+import _map from "./internal/_map.js";
+import _reduce from "./internal/_reduce.js";
+import _xmap from "./internal/_xmap.js";
+import curryN from "./curryN.js";
+import keys from "./keys.js";
+/**
+ * Takes a function and
+ * a [functor](https://github.com/fantasyland/fantasy-land#functor),
+ * applies the function to each of the functor's values, and returns
+ * a functor of the same shape.
+ *
+ * Ramda provides suitable `map` implementations for `Array` and `Object`,
+ * so this function may be applied to `[1, 2, 3]` or `{x: 1, y: 2, z: 3}`.
+ *
+ * Dispatches to the `map` method of the second argument, if present.
+ *
+ * Acts as a transducer if a transformer is given in list position.
+ *
+ * Also treats functions as functors and will compose them together.
+ *
+ * @func
+ * @memberOf R
+ * @since v0.1.0
+ * @category List
+ * @sig Functor f => (a -> b) -> f a -> f b
+ * @param {Function} fn The function to be called on every element of the input `list`.
+ * @param {Array} list The list to be iterated over.
+ * @return {Array} The new list.
+ * @see R.transduce, R.addIndex, R.pluck, R.project
+ * @example
+ *
+ *      const double = x => x * 2;
+ *
+ *      R.map(double, [1, 2, 3]); //=> [2, 4, 6]
+ *
+ *      R.map(double, {x: 1, y: 2, z: 3}); //=> {x: 2, y: 4, z: 6}
+ * @symb R.map(f, [a, b]) = [f(a), f(b)]
+ * @symb R.map(f, { x: a, y: b }) = { x: f(a), y: f(b) }
+ * @symb R.map(f, functor_o) = functor_o.map(f)
+ */
+
+var map =
+/*#__PURE__*/
+_curry2(
+/*#__PURE__*/
+_dispatchable(['fantasy-land/map', 'map'], _xmap, function map(fn, functor) {
+  switch (Object.prototype.toString.call(functor)) {
+    case '[object Function]':
+      return curryN(functor.length, function () {
+        return fn.call(this, functor.apply(this, arguments));
+      });
+
+    case '[object Object]':
+      return _reduce(function (acc, key) {
+        acc[key] = fn(functor[key]);
+        return acc;
+      }, {}, keys(functor));
+
+    default:
+      return _map(fn, functor);
+  }
+}));
+
+export default map;