<span class="js-questions-container"></span>

const questionsContainer = <HTMLDivElement>(
  App!.querySelector(".js-questions-container")
);
interface IRenderQuestions {
  (questionsData: IQuestion[], dom: HTMLDivElement): void;
}

let renderQuestionsFunction: IRenderQuestions;
renderQuestionsFunction = function (questionsData, dom): void {
  console.log(questionsData, dom);
};

renderQuestionsFunction(questions, questionsContainer);