Added general Utils object. Debounce, in this case.

app/js/untils.js

+const utils = {
+  debounce:function(func, delay){
+    var timeout = null;
+    return function(){
+      var context = this;
+      var args = arguments;
+      clearTimeout(timeout);
+      timeout = setTimeout(function(){
+        func.apply(context, args);
+      }, delay);
+    };
+  }
+};
+
+
+Object.freeze(utils);
+export default utils;
+