1 files changed, 61 insertions, 0 deletions
diff --git a/node_modules/fbjs/lib/minBy.js b/node_modules/fbjs/lib/minBy.js
new file mode 100644
index 000000000..73091158b
--- /dev/null
+++ b/node_modules/fbjs/lib/minBy.js
@@ -0,0 +1,61 @@
+"use strict";
+
+/**
+ * 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.
+ *
+ * 
+ */
+
+var compareNumber = function compareNumber(a, b) {
+  return a - b;
+};
+
+/**
+ * Returns the minimum element as measured by a scoring function f. Returns the
+ * first such element if there are ties.
+ */
+function minBy(as, f, compare) {
+  compare = compare || compareNumber;
+
+  var minA = undefined;
+  var minB = undefined;
+  var seenFirst = false;
+  var _iteratorNormalCompletion = true;
+  var _didIteratorError = false;
+  var _iteratorError = undefined;
+
+  try {
+    for (var _iterator = as[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
+      var a = _step.value;
+
+      var b = f(a);
+      if (!seenFirst || compare(b, minB) < 0) {
+        minA = a;
+        minB = b;
+        seenFirst = true;
+      }
+    }
+  } catch (err) {
+    _didIteratorError = true;
+    _iteratorError = err;
+  } finally {
+    try {
+      if (!_iteratorNormalCompletion && _iterator["return"]) {
+        _iterator["return"]();
+      }
+    } finally {
+      if (_didIteratorError) {
+        throw _iteratorError;
+      }
+    }
+  }
+
+  return minA;
+}
+
+module.exports = minBy;
+\ No newline at end of file