สร้างตาราง HTML แบบไดนามิกโดยใช้ HTML, CSS และ JavaScript

<div class="container">
    <h1>Dynamic Tableh1>
      <div class="input-container">
        <input type="number" id="columns" min="1" placeholder="Number of Columns">
        <input type="number" id="rows" min="1" placeholder="Number of Rows">
        <button onclick="createTable()">Create Tablebutton>div>
  <table id="myTable">
    
  table>
div>

.container{
  width: 60%;
  margin: 0 auto;
}

h1 {
margin-top: 0;
text-align: center;
}

.input-container{
display: flex;
justify-content: center;
flex-wrap: wrap;
}

#rows,
#columns {
padding: 10px;
font-size: 16px;
margin-right: 10px;
border-radius: 5px;
border: 1px solid #ccc;
}

#rows:focus,
#columns:focus{
border-color: #66afe9;
outline: 0;
-webkit-box-shadow: inset 0 1px 1px rgba(0,0,0,.075), 0 0 8px rgba(102,175,233,.6);
box-shadow: inset 0 1px 1px rgba(0,0,0,.075), 0 0 8px rgba(102,175,233,.6);
}

button {
padding: 10px 20px;
font-size: 16px;
cursor: pointer;
background-color: #4CAF50;
color: white;
border: none;
border-radius: 4px;
}

button:hover {
background-color: #3e8e41;
}

table {
  border-collapse: collapse;
  width: 100%;
}
.header-input {
  width: 100%;
  box-sizing: border-box;
  font-weight: bold;
  border: none;
  outline: none;
  text-transform: uppercase;
}

#myTable{
  margin-top: 30px;
}

th, td {
  border: 1px solid black;
  padding: 8px;
  text-align: left;
}

.editable-cell {
  background-color: #f2f2f2;
  outline: none
}

/* Chrome, Safari, Edge, Opera */
input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
-webkit-appearance: none;
margin: 0;
}

/* Firefox */
input[type=number] {
-moz-appearance: textfield;
}

var tableData = [];

    function createTable() {
      var table = document.getElementById("myTable");
      var columnsInput = document.getElementById("columns");
      var rowsInput = document.getElementById("rows");
      var columns = parseInt(columnsInput.value);
      var rows = parseInt(rowsInput.value);

      // Clear existing table
      while (table.firstChild) {
        table.removeChild(table.firstChild);
      }

      // Create table header
      var headerRow = document.createElement("tr");
      for (var i = 0; i < columns; i++) {
        var th = document.createElement("th");
        var input = document.createElement("input");
        input.setAttribute("type", "text");
        input.setAttribute("class", "header-input");
        input.setAttribute("placeholder", "Column " + (i + 1));
        th.appendChild(input);
        headerRow.appendChild(th);
      }
      table.appendChild(headerRow);

      // Create table rows
      for (var i = 0; i < rows; i++) {
        var rowData = [];
        var row = document.createElement("tr");
        for (var j = 0; j < columns; j++) {
          var cell = document.createElement("td");
          cell.setAttribute("contenteditable", "true");
          cell.setAttribute("class", "editable-cell");
          cell.addEventListener("input", updateCell);
          rowData.push("");
          row.appendChild(cell);
        }
        table.appendChild(row);
        tableData.push(rowData);
      }
    }

    function updateCell(event) {
      var rowIndex = event.target.parentNode.rowIndex - 1;
      var columnIndex = event.target.cellIndex;
      var value = event.target.textContent.trim();
      updateData(rowIndex, columnIndex, value);
    }

    function updateData(row, col, value) {
      tableData[row][col] = value;
    }

    function deleteRow(row) {
      var table = document.getElementById("myTable");
      table.deleteRow(row);
      tableData.splice(row, 1);
    }

    function updateRow(row) {
      var table = document.getElementById("myTable");
      var rowData = tableData[row];
      var cells = table.rows[row + 1].cells;
      for (var i = 0; i < rowData.length; i++) {
        var value = cells[i].textContent.trim();
        rowData[i] = value;
      }
    }

    function displayData() {
      console.log(tableData);
    }