Add helper to create private data storage using WeakMap

1 files changed, 10 insertions, 0 deletions

diff --git a/app/lib/private.js b/app/lib/private.js
new file mode 100644
index 0000000000..61e574ee12
--- /dev/null
+++ b/app/lib/private.js
@@ -0,0 +1,10 @@
+/**
+ * Data incapsulation helper
+ */
+export default () => {
+  const store = new WeakMap();
+  return {
+    get: (k) => store.get(k),
+    set: (k, v) => store.set(k, v)
+  };
+};