Furniture

function solve() {
    let generateBtn = document.querySelector("#exercise > button:nth-child(3)").addEventListener('click', function (e){
      let txtArea = document.querySelector("#exercise > textarea:nth-child(2)").value;

      let obj = JSON.parse(txtArea);
      let table = document.querySelector(".table");

      for (let item of obj) {
          let rowsCount = table.rows.length;
          row = table.insertRow(rowsCount);
          let cell = row.insertCell(0);
          cell.innerHTML ='<img src='+item.img+'>';
          let cell2 = row.insertCell(1);
          cell2.innerHTML = '<p>'+item.name+'</p>';
          let cell3 = row.insertCell(2);
          cell3.innerHTML = '<p>'+item.price+'</p>';
          let cell4 = row.insertCell(3);
          cell4.innerHTML = '<p>'+item.decFactor+'</p>';
          let cell5 = row.insertCell(4);
          cell5.innerHTML = '<input type ="checkbox">';

      }
    })
    let resultArea = document.querySelector("#exercise > textarea:nth-child(5)");
    let buyBtn = document.querySelector("#exercise > button:nth-child(6)").addEventListener('click', function(){
      function getCheckedValues() {
        return Array.from(document.querySelectorAll('input[type="checkbox"]'))
        .filter((checkbox) => checkbox.checked)
        .map((checkbox) => checkbox.parentElement.parentElement);
      }
      let bougthFurniture = [];
      let price =[];
      let decFactor = [];

      for(let i = 0; i < getCheckedValues().length; i++){
        bougthFurniture.push(getCheckedValues()[i].children[1].children[0].innerHTML);
        price.push(getCheckedValues()[i].children[2].children[0].innerHTML);
        decFactor.push(getCheckedValues()[i].children[3].children[0].innerHTML);
      }
      let totalPrice = 0;
      let averageDecFactor = 0;
      if(price.length > 1){
         totalPrice = price.reduce((acc,curr) => +acc + +curr).toFixed(2);
         averageDecFactor = (decFactor.reduce((acc,curr) => +acc + +curr)/decFactor.length);
      }else{
        totalPrice = price;
        averageDecFactor = decFactor;
      }
      console.log(price);
      resultArea.value += `Bought furniture: ${bougthFurniture.join(', ')}`;
      resultArea.value += `\nTotal price: ${totalPrice}`;
      resultArea.value += `\nAverage decoration factor: ${averageDecFactor}`;

    })
}