<!DOCTYPE html>
<html>
<body>
<h2>ドロップダウン メニューの値に基づいてテーブルを作成します。</h2>
<select id="myselect" onchange="change_myselect(this.value)">
<option value="">Choose an option:</option>
<option value="customers">Customers</option>
<option value="products">Products</option>
<option value="suppliers">Suppliers</option>
</select>
<p id="demo"></p>
<script>
function change_myselect(sel) {
const dbParam = JSON.stringify({table:sel,limit:20});
const xmlhttp = new XMLHttpRequest();
xmlhttp.onload = function() {
myObj = JSON.parse(this.responseText);
text = "<table border='1'>"
for (x in myObj) {
text += "<tr><td>" + myObj[x].name + "</td></tr>";
}
text += "</table>"
