easy-going-rails/app/javascript/controllers/hot_search_controller.js

import { Controller } from "@hotwired/stimulus";

// Connects to data-controller="hot-search"
export default class extends Controller {
  connect() {
    this.debouncedSearch = debounce(this.debouncedSearch.bind(this), 400)
  }

  debouncedSearch() {
    Turbo.visit('/scores?q[name_cont]=' + this.element.value, { frame: 'scores', turbo: true, acceptsStreamResponse: true })
  }
}

function debounce(callback, delay) {
  let timeoutId;
  return (...args) => {
    if (timeoutId) { clearTimeout(timeoutId) }
    timeoutId = setTimeout(() => {
      callback(...args)
      timeoutId = null
    }, delay)
  }
}