<!DOCTYPE html>
<html lang="ja">
<head>
<meta charset="utf-8" />
<title>スマホで取った写真をプレビュー表示</title>
<style></style>
<script>
document.addEventListener("DOMContentLoaded", () => {
document.querySelector("#btnScan").addEventListener("click", function() {
document.querySelector("#fulImage").click();
});
document.querySelector("#fulImage").addEventListener("change", function(e) {
var reader = new FileReader();
reader.onload = function (e) {
document.querySelector("#imgPhoto").src = e.target.result;
};
reader.readAsDataURL(e.target.files[0]);
});
});
</script>
</head>
<body>
<div><img id="imgPhoto" width="300" height="300"><div>
<div>
<input type="file" id="fulImage" style="display:none">
<button id="btnScan">scan</button>
</div>
</body>
</html>
