@esfx/metadata-shim

The @esfx/metadata-shim package is a global shim that adds minimal @esfx/metadata functionality to the Reflect global object. This provides partial compatibility with TypeScript's --emitDecoratorMetadata flag.

Overview

• Installation
• Usage
• API

Installation

npm i @esfx/metadata-shim

Usage

import "@esfx/metadata-shim";
import { getMemberMetadata } from "@esfx/metadata";

// TypeScript compiled with --emitDecoratorMetadata
class MyClass {
    @someDecorator
    method(x: number): string {
        return "";
    }
}

const c = new MyClass();
getMemberMetadata(c, "method", "design:returntype"); // String
getMemberMetadata(c, "method", "design:paramtypes"); // [Number]

API

You can read more about the API here.