GitBucket
<!DOCTYPE html>
<html lang="ja">
<head><title>?????</title>
</head>
<h1>???????</h1>
<body>
<script>
<form name="form1">
<input type="text" name="input1">
<input type="button" id="test1" value="??">
</form>
<p id="test2">????</p>
<script>
function func1() {
let y = document.form1.input1.value;
const z = document.querySelector("#test2");
z.textContent = y;
}
const x = document.querySelector("#test1");
x.addEventListener("click",func1);
</script>
</html>