<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title></title>
</head>
<body>
<input type="text" id="uname"><input type="checkbox" name="" id="remember">記住用戶名
<script>
var uname = document.querySelector("#uname");
var remember = document.querySelector("#remember");
if (localStorage.getItem('uname')) {
uname.value = localStorage.getItem('uname');
console.log(localStorage.getItem('uname'));
remember.checked = true;
}
remember.addEventListener('change', function() {
if (this.checked) {
localStorage.setItem('uname', uname.value);
} else {
localStorage.removeItem('uname');
}
})
uname.addEventListener('focus', function() {
uname.value = localStorage.getItem('uname')
})
</script>
</body>
</html>