Method isPlainObject

packages/core/src/utils/Utils.ts:782–792

* Checks whether the value is POJO (e.g. `{ foo: 'bar' }`, and not instance of `Foo`)

(value: any)

   * Checks whether the value is POJO (e.g. `{ foo: 'bar' }`, and not instance of `Foo`)
   */
  static isPlainObject<T extends Dictionary>(value: any): value is T {
    return (
      (value !== null &&
        typeof value === 'object' &&
        typeof value.constructor === 'function' &&
        (Object.hasOwn(value.constructor.prototype, 'isPrototypeOf') ||
          Object.getPrototypeOf(value.constructor.prototype) === null)) ||
      (value && Object.getPrototypeOf(value) === null) ||
      value instanceof PlainObject
    );
  }

  /**
   * Executes the `cb` promise serially on every element of the `items` array and returns array of resolved values.