Conversion template?

strip_search.js

class StripSearch {

  static months = {
    '01': 'January',
    ...
  }

  static setup_events() {
    document.getElementById("query").addEventListener('keyup', StripSearch.run_search);
  }

  static run_search(e) {
    e.preventDefault();
    search = new StripSearch(document.getElementById("query").value)
  }
 
  constructor(searchTerm) {
    this.query = searchTerm;
    this.results = this.run_search(searchTerm);
  }

  // formerly query()
  run_search(searchTerm) {
    ...
    r.onreadystatechange = () => start(r); // Inline function definition
  }

  // formerly start(r)
  complete_search(request) {
    ..
  }

}