push rasad front on new repo

src/utils/groupBy.js

@@ -0,0 +1,8 @@
+export function groupBy(array, key) {
+  return array.reduce((hash, obj) => {
+    if (obj[key] === undefined) return hash;
+    return Object.assign(hash, {
+      [obj[key]]: (hash[obj[key]] || []).concat(obj),
+    });
+  }, {});
+}