add hw2

node_modules/ramda/es/reduceWhile.js

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+import _curryN from "./internal/_curryN.js";
+import _reduce from "./internal/_reduce.js";
+import _reduced from "./internal/_reduced.js";
+/**
+ * Like [`reduce`](#reduce), `reduceWhile` returns a single item by iterating
+ * through the list, successively calling the iterator function. `reduceWhile`
+ * also takes a predicate that is evaluated before each step. If the predicate
+ * returns `false`, it "short-circuits" the iteration and returns the current
+ * value of the accumulator. `reduceWhile` may alternatively be short-circuited
+ * via [`reduced`](#reduced).
+ *
+ * @func
+ * @memberOf R
+ * @since v0.22.0
+ * @category List
+ * @sig ((a, b) -> Boolean) -> ((a, b) -> a) -> a -> [b] -> a
+ * @param {Function} pred The predicate. It is passed the accumulator and the
+ *        current element.
+ * @param {Function} fn The iterator function. Receives two values, the
+ *        accumulator and the current element.
+ * @param {*} a The accumulator value.
+ * @param {Array} list The list to iterate over.
+ * @return {*} The final, accumulated value.
+ * @see R.reduce, R.reduced
+ * @example
+ *
+ *      const isOdd = (acc, x) => x % 2 !== 0;
+ *      const xs = [1, 3, 5, 60, 777, 800];
+ *      R.reduceWhile(isOdd, R.add, 0, xs); //=> 9
+ *
+ *      const ys = [2, 4, 6]
+ *      R.reduceWhile(isOdd, R.add, 111, ys); //=> 111
+ */
+
+var reduceWhile =
+/*#__PURE__*/
+_curryN(4, [], function _reduceWhile(pred, fn, a, list) {
+  return _reduce(function (acc, x) {
+    return pred(acc, x) ? fn(acc, x) : _reduced(acc);
+  }, a, list);
+});
+
+export default reduceWhile;