text: import "./app1.css";
  import $ from "jquery";
  
  const $button1 = $("#add1");
  const $button2 = $("#minus1");
  const $button3 = $("#mul2");
  const $button4 = $("#divide2");
  const $number = $("#number");
  const n = localStorage.getItem("n");
  $number.text(n || 100);
  
  $button1.on("click", () => {
    let n = parseInt($number.text());
    n += 1;
    localStorage.setItem("n", n);
    $number.text(n);
  });
  $button2.on("click", () => {
    let n = parseInt($number.text());
    n -= 1;
    localStorage.setItem("n", n);
    $number.text(n);
  });
  $button3.on("click", () => {
    let n = parseInt($number.text());
    n *= 2;
    localStorage.setItem("n", n);
    $number.text(n);
  });
  $button4.on("click", () => {
    let n = parseInt($number.text());
    n /= 2;
    localStorage.setItem("n", n);
    $number.text(n);
  });