function solve() {
  let searchButton = document.querySelector("#searchBtn");
  searchButton.addEventListener("click", handler);
  function handler(e) {
    Array.from(document.querySelectorAll(".select")).map(x => x.remove());
    let allRows = document.querySelectorAll("body > table > tbody > tr");
    let inputField = document.querySelector("#searchField").value.toLowerCase();

    for (const element of allRows) {
      let currCellValue = element.innerHTML.toLowerCase();
      if (currCellValue.includes(inputField)) {
        element.className = "select";
      }
    }
    document.querySelector("#searchField").value = "";
  }
}