1 files changed, 27 insertions, 0 deletions
diff --git a/node_modules/fbjs/lib/maxBy.js.flow b/node_modules/fbjs/lib/maxBy.js.flow
new file mode 100644
index 000000000..38af0c706
--- /dev/null
+++ b/node_modules/fbjs/lib/maxBy.js.flow
@@ -0,0 +1,27 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @providesModule maxBy
+ * @flow
+ */
+
+var minBy = require('./minBy');
+
+var compareNumber = (a, b) => a - b;
+
+/**
+ * Returns the maximum element as measured by a scoring function f. Returns the
+ * first such element if there are ties.
+ */
+function maxBy<A, B>(as: Iterable<A>, f: (a: A) => B, compare?: ?(u: B, v: B) => number): ?A {
+  compare = compare || (compareNumber: any);
+
+  return minBy(as, f, (u, v) => (compare: any)(v, u));
+}
+
+module.exports = maxBy;
+\ No newline at end of file