add some types

src/components/Widgets/SignupQuestionsWidget/QuestionList.tsx

@@ -23,11 +23,11 @@ interface QuestionListProps {
 }
 
 class QuestionList extends React.Component<QuestionListProps> {
-  renderTextWidget = ({ questions, value, index }: InputProps) => (
+  renderTextWidget = ({ questions, value, index }: InputProps): JSX.Element => (
     <input type="text" value={value} onChange={this.handleNameInputChange(questions, index)} />
   );
 
-  handleNameInputChange = (questions: Question[], index: number) => (event) => {
+  handleNameInputChange = (questions: Question[], index: number): React.ChangeEventHandler<HTMLInputElement> => (event) => {
     const { onChange } = this.props;
     const val = event.target.value;
     // eslint-disable-next-line no-param-reassign
@@ -35,14 +35,14 @@ class QuestionList extends React.Component<QuestionListProps> {
     onChange(questions);
   };
 
-  handleElementRemove = (questions: Question[], index: number) => () => {
+  handleElementRemove = (questions: Question[], index: number) => (): void => {
     const { onChange } = this.props;
     const newQuestions = [...questions];
     newQuestions.splice(index, 1);
     onChange(newQuestions);
   };
 
-  renderQuestions() {
+  renderQuestions(): JSX.Element[] {
     const { questions, onChange } = this.props;
     return questions.map((q, index) => {
       const nameWidgetProps = {
@@ -77,7 +77,7 @@ class QuestionList extends React.Component<QuestionListProps> {
     });
   }
 
-  render() {
+  render(): JSX.Element {
     const { placeholder, innerRef } = this.props;
 
     return (