add hw2

node_modules/ramda/es/median.js

@@ -0,0 +1,37 @@
+import _curry1 from "./internal/_curry1.js";
+import mean from "./mean.js";
+/**
+ * Returns the median of the given list of numbers.
+ *
+ * @func
+ * @memberOf R
+ * @since v0.14.0
+ * @category Math
+ * @sig [Number] -> Number
+ * @param {Array} list
+ * @return {Number}
+ * @see R.mean
+ * @example
+ *
+ *      R.median([2, 9, 7]); //=> 7
+ *      R.median([7, 2, 10, 9]); //=> 8
+ *      R.median([]); //=> NaN
+ */
+
+var median =
+/*#__PURE__*/
+_curry1(function median(list) {
+  var len = list.length;
+
+  if (len === 0) {
+    return NaN;
+  }
+
+  var width = 2 - len % 2;
+  var idx = (len - width) / 2;
+  return mean(Array.prototype.slice.call(list, 0).sort(function (a, b) {
+    return a < b ? -1 : a > b ? 1 : 0;
+  }).slice(idx, idx + width));
+});
+
+export default median;