doFilter() {
    throw Error(
      'Method `doFilter` of an `ArticleCollectionFilter` must be overridden in the child class.'
    );
  }
/**
   * Applies the filter to the articles; must be overridden in the child class
   *
   * @returns {void}
   */
Applies the filter to the articles; must be overridden in the child class
@returns {void}
Applies the filter to the articles ; must be overridden in the child class @returns { void }
doFilter() {
    throw Error(
      'Method `doFilter` of an `ArticleCollectionFilter` must be overridden in the child class.'
    );
  }
doFilter ( ) { throw Error ( 'Method `doFilter` of an `ArticleCollectionFilter` must be overridden in the child class.' ) ; }
Applies the filter to the articles; must be overridden in the child class
 @returns {void}
Applies the filter to the articles ; must be overridden in the child class @returns { void }