In order to use or try Decorators in TypeScript, we need to enable it. Enabling Decorators can be done from
tsconfig.json file has been created using
tsc init command, the file would have a default configuration. The file also has many configurations that are commented.
One such commented option is
experimentalDecorators. Uncomment the line that contains
experimentalDecorators json property and ensure that its value is
Doing the above step will enable Decorators in TypeScript.