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node_modules/ramda/es/intersection.js

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+import _includes from "./internal/_includes.js";
+import _curry2 from "./internal/_curry2.js";
+import _filter from "./internal/_filter.js";
+import flip from "./flip.js";
+import uniq from "./uniq.js";
+/**
+ * Combines two lists into a set (i.e. no duplicates) composed of those
+ * elements common to both lists.
+ *
+ * @func
+ * @memberOf R
+ * @since v0.1.0
+ * @category Relation
+ * @sig [*] -> [*] -> [*]
+ * @param {Array} list1 The first list.
+ * @param {Array} list2 The second list.
+ * @return {Array} The list of elements found in both `list1` and `list2`.
+ * @see R.innerJoin
+ * @example
+ *
+ *      R.intersection([1,2,3,4], [7,6,5,4,3]); //=> [4, 3]
+ */
+
+var intersection =
+/*#__PURE__*/
+_curry2(function intersection(list1, list2) {
+  var lookupList, filteredList;
+
+  if (list1.length > list2.length) {
+    lookupList = list1;
+    filteredList = list2;
+  } else {
+    lookupList = list2;
+    filteredList = list1;
+  }
+
+  return uniq(_filter(flip(_includes)(lookupList), filteredList));
+});
+
+export default intersection;