HTMLから特定の値を返す #HTML

array.html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>jQuery Example</title>
  <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
</head>
<body>
  <select id="dropdown"></select>
  <button id="button">送信</button>
  <p id="result"></p>

  <script src="script.js"></script>
</body>
</html>

array.js

$(document).ready(function() {
  const data = {
    "key1": "value1",
    "key2": "value2",
    "key3": "value3"
  };

  // Populate dropdown with the keys from the associative array
  for (const key in data) {
    $('#dropdown').append(`<option value="${key}">${key}</option>`);
  }

  // On button click, show the value corresponding to the selected key
  $('#button').click(function() {
    const selectedKey = $('#dropdown').val();
    const selectedValue = data[selectedKey];
    $('#result').text(`選択された値: ${selectedValue}`);
  });
});