Catch decorator in typescript

catch.ts

function Catch(E, callback) {
    return function (target, key: string, descriptor: PropertyDescriptor) {

    if(descriptor === undefined) {
      descriptor = Object.getOwnPropertyDescriptor(target, key);
    }
    var originalMethod = descriptor.value;
 
    descriptor.value = function () {
        try {
            originalMethod()
        } catch (err) {
            if (err instanceof E) {
                callback(err);
            }
        }
    };
 
    return descriptor;
    }
}

// example 

class App {
    static function reap() {
      console.log('ya hoo')
    }

    @Catch(Error, e => console.log('bad happened'))
    renderJSON() {
        throw new Error('hallo');
    }
}

(new App()).renderJSON();