1 files changed, 21 insertions, 0 deletions
diff --git a/devtools/client/responsive.html/utils/enum.js b/devtools/client/responsive.html/utils/enum.js
new file mode 100644
index 000000000..cab8ff1ce
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+++ b/devtools/client/responsive.html/utils/enum.js
@@ -0,0 +1,21 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+module.exports = {
+
+  /**
+   * Create a simple enum-like object with keys mirrored to values from an array.
+   * This makes comparison to a specfic value simpler without having to repeat and
+   * mis-type the value.
+   */
+  createEnum(array, target = {}) {
+    for (let key of array) {
+      target[key] = key;
+    }
+    return target;
+  }
+
+};