Merge pull request #5824 from chrootsu/lodash-intersection

lodash: changed _.intersection() method

lodash/lodash-tests.ts

@@ -302,7 +302,18 @@ result = <number>_.indexOf([1, 1, 2, 2, 3, 3], 2, true);
     result = _(testInitalList).initial<TResult>().value();
 }
 
-result = <number[]>_.intersection([1, 2, 3], [101, 2, 1, 10], [2, 1]);
+// _.intersection
+{
+    let testIntersectionArray: TResult[];
+    let testIntersectionList: _.List<TResult>;
+    let result: TResult[];
+    result = _.intersection<TResult>(testIntersectionArray, testIntersectionList);
+    result = _.intersection<TResult>(testIntersectionList, testIntersectionArray, testIntersectionList);
+    result = _(testIntersectionArray).intersection<TResult>(testIntersectionArray).value();
+    result = _(testIntersectionArray).intersection<TResult>(testIntersectionList, testIntersectionArray).value();
+    result = _(testIntersectionList).intersection<TResult>(testIntersectionArray).value();
+    result = _(testIntersectionList).intersection<TResult>(testIntersectionList, testIntersectionArray).value();
+}
 
 result = <number>_.last([1, 2, 3]);
 result = <number>_([1, 2, 3]).last();

lodash/lodash.d.ts

@@ -988,17 +988,27 @@ declare module _ {
     //_.intersection
     interface LoDashStatic {
         /**
-        * Creates an array of unique values present in all provided arrays using strict
-        * equality for comparisons, i.e. ===.
-        * @param arrays The arrays to inspect.
-        * @return Returns an array of composite values.
-        **/
-        intersection<T>(...arrays: Array<T>[]): T[];
+         * Creates an array of unique values that are included in all of the provided arrays using SameValueZero for
+         * equality comparisons.
+         *
+         * @param arrays The arrays to inspect.
+         * @return Returns the new array of shared values.
+         */
+        intersection<T>(...arrays: (T[]|List<T>)[]): T[];
+    }
 
+    interface LoDashArrayWrapper<T> {
         /**
-        * @see _.intersection
-        **/
-        intersection<T>(...arrays: List<T>[]): T[];
+         * @see _.intersection
+         */
+        intersection<TResult>(...arrays: (TResult[]|List<TResult>)[]): LoDashArrayWrapper<TResult>;
+    }
+
+    interface LoDashObjectWrapper<T> {
+        /**
+         * @see _.intersection
+         */
+        intersection<TResult>(...arrays: (TResult[]|List<TResult>)[]): LoDashArrayWrapper<TResult>;
     }
 
     //_.last