add hw2

node_modules/ramda/es/takeLastWhile.js

@@ -0,0 +1,41 @@
+import _curry2 from "./internal/_curry2.js";
+import slice from "./slice.js";
+/**
+ * Returns a new list containing the last `n` elements of a given list, passing
+ * each value to the supplied predicate function, and terminating when the
+ * predicate function returns `false`. Excludes the element that caused the
+ * predicate function to fail. The predicate function is passed one argument:
+ * *(value)*.
+ *
+ * @func
+ * @memberOf R
+ * @since v0.16.0
+ * @category List
+ * @sig (a -> Boolean) -> [a] -> [a]
+ * @sig (a -> Boolean) -> String -> String
+ * @param {Function} fn The function called per iteration.
+ * @param {Array} xs The collection to iterate over.
+ * @return {Array} A new array.
+ * @see R.dropLastWhile, R.addIndex
+ * @example
+ *
+ *      const isNotOne = x => x !== 1;
+ *
+ *      R.takeLastWhile(isNotOne, [1, 2, 3, 4]); //=> [2, 3, 4]
+ *
+ *      R.takeLastWhile(x => x !== 'R' , 'Ramda'); //=> 'amda'
+ */
+
+var takeLastWhile =
+/*#__PURE__*/
+_curry2(function takeLastWhile(fn, xs) {
+  var idx = xs.length - 1;
+
+  while (idx >= 0 && fn(xs[idx])) {
+    idx -= 1;
+  }
+
+  return slice(idx + 1, Infinity, xs);
+});
+
+export default takeLastWhile;