node_modules

1 files changed, 30 insertions, 0 deletions

diff --git a/node_modules/fbjs/lib/equalsSet.js.flow b/node_modules/fbjs/lib/equalsSet.js.flow
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index 000000000..5ef93fa66
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+++ b/node_modules/fbjs/lib/equalsSet.js.flow
@@ -0,0 +1,30 @@
+/**
+ * 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 equalsSet
+ * @flow
+ * @typechecks
+ */
+
+'use strict';
+
+import type Set from './Set';
+
+var everySet = require('./everySet');
+
+/**
+ * Checks if two sets are equal
+ */
+function equalsSet<T>(one: Set<T>, two: Set<T>): boolean {
+  if (one.size !== two.size) {
+    return false;
+  }
+  return everySet(one, value => two.has(value));
+}
+
+module.exports = equalsSet;
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