refactor(frontend): replace legacy utils JS files with typed TS equivalents

frontend/src/static/js/utils/helpers/exportStore.ts

@@ -0,0 +1,28 @@
+import EventEmitter from 'events';
+import { dispatcher } from '../dispatcher';
+
+// type ClassProperties<C> = {
+//     [Key in keyof C as C[Key] extends Function ? never : Key]: C[Key];
+// };
+
+type ClassMethods<C> = {
+    [Key in keyof C as C[Key] extends Function ? Key : never]: C[Key];
+};
+
+// @todo: Check this again
+export function exportStore<TStore extends EventEmitter, THandler extends keyof ClassMethods<TStore>>(
+    store: TStore,
+    handler: THandler
+) {
+    const method = store[handler] as Function;
+    const callback: (payload: unknown) => void = method.bind(store);
+    dispatcher.register(callback);
+    return store;
+}
+
+// @todo: Remove older vesion.
+// export function exportStore_OLD(store, handler) {
+//     const callback = store[handler].bind(store);
+//     dispatcher.register(callback);
+//     return store;
+// }