怎么实现 localStorage 单选保存？

Question

用 localStorage 做单选按框的保存，该怎么做，小白求解！

if(id.isChecked){
    ...
}

Answer 1

<input type="checkbox" name="remember" value="remember"> 记住密码
<input type="submit" id="submit" value="提交" />
<script>
var rem = document.querySelector("input[name=remember]");
rem.checked = Boolean( localStorage.getItem(o.value) ) || false;
document.querySelector("#submit").onclick = function() {
    localStorage.setItem( rem.value, rem.checked );
}
</script>