add hw2

node_modules/ramda/es/propOr.js

@@ -0,0 +1,38 @@
+import _curry3 from "./internal/_curry3.js";
+import defaultTo from "./defaultTo.js";
+import prop from "./prop.js";
+/**
+ * Return the specified property of the given non-null object if the property
+ * is present and it's value is not `null`, `undefined` or `NaN`.
+ *
+ * Otherwise the first argument is returned.
+ *
+ * @func
+ * @memberOf R
+ * @since v0.6.0
+ * @category Object
+ * @sig a -> String -> Object -> a
+ * @param {*} val The default value.
+ * @param {String} p The name of the property to return.
+ * @param {Object} obj The object to query.
+ * @return {*} The value of given property of the supplied object or the default value.
+ * @example
+ *
+ *      const alice = {
+ *        name: 'ALICE',
+ *        age: 101
+ *      };
+ *      const favorite = R.prop('favoriteLibrary');
+ *      const favoriteWithDefault = R.propOr('Ramda', 'favoriteLibrary');
+ *
+ *      favorite(alice);  //=> undefined
+ *      favoriteWithDefault(alice);  //=> 'Ramda'
+ */
+
+var propOr =
+/*#__PURE__*/
+_curry3(function propOr(val, p, obj) {
+  return defaultTo(val, prop(p, obj));
+});
+
+export default propOr;