Typescript Decorator function to populate the class properties with the first argument as an object

InitsWithProps.ts

export function InitsWithProps<T extends {new(...args: any[]): {}}>(constructor: T) {
  return class extends constructor {
    constructor(...args: any[]) {
      super(...args);

      if (args && args.length) {
        Object.assign(this, args[0]); //args[0] must be an object
      }
    }
  };
}

Usage

@InitsWithProps
export class ExampleClass {
  id: number;
  text: string;
}

const example = new ExampleClass({ id: 1, text: 'example here' })