자바스크립트

window.addEventListener("load", aa)
// setTimeout(aa, 100);
console.log('B');

function aa() {
   console.log('A');
   let button = document.createElement('button');
   let input = document.createElement('input');
   let body = document.querySelector('div')
window.addEventListener("load", aa)
// setTimeout(aa, 100);
console.log('B');

function aa() {
   console.log('A');
   let button = document.createElement('button');
   let input = document.createElement('input');
   let body = document.querySelector('div')

   input.type = "text";
   body.appendChild(input);
   body.appendChild(button);
   button.addEventListener('click', bb);
   button.innerText = "버튼";
   // console.log(button.innerText.constructor.name)
   // console.log(button.querySelector.constructor.name)

   let count = 0;
   function bb() {
      for (let i = 0; i < 5; i++) {
         let xx = 0;
         xx = xx + i;
         let div = document.createElement('div');
         body.appendChild(div);
         div.innerText = input.value;
         div.addEventListener('click', cc)
         function cc() {
            div.innerText = xx;
         }
      }
      if (count == 0) {
         button.innerText = "버튼";
         count = 1;
      }
      else {
         button.innerText = "버튼없음";
         count = 0;
      }
   }
}


   input.type = "text";
   body.appendChild(input);
   body.appendChild(button);
   button.addEventListener('click', bb);
   button.innerText = "버튼";
   // console.log(button.innerText.constructor.name)
   // console.log(button.querySelector.constructor.name)

   let count = 0;
   function bb() {
      for (let i = 0; i < 5; i++) {
         let xx = 0;
         xx = xx + i;
         let div = document.createElement('div');
         body.appendChild(div);
         div.innerText = input.value;
         div.addEventListener('click', cc)
         function cc() {
            div.innerText = xx;
         }
      }
      if (count == 0) {
         button.innerText = "버튼";
         count = 1;
      }
      else {
         button.innerText = "버튼없음";
         count = 0;
      }
   }
}