One Paragraph of project description goes here
These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.
| const Metadata = new WeakMap(); | |
| function defineMetadata(key, value, target) { | |
| if (!Metadata.get(target)) { | |
| Metadata.set(target, new Map()); | |
| } | |
| const map = Metadata.get(target); | |
| map.set(key, value); | |
| } |