sematgt

class Group {
  constructor() {
    this.elements = [];
  }

  add(element) {
    if (!this.has(element)) {
      this.elements.push(element);
    }
  }

sematgt

import React from 'react';
import TextField from '@material-ui/core/TextField';
import Autocomplete from '@material-ui/lab/Autocomplete';

export default function ComboBox(props) {
    return (
        <Autocomplete
        autoHighlight={props.autoHighlight}
        onChange={props.handleChange}
        clearText={props.clearText}