JS on checkbox更改启用或禁用单选按钮

Question

我有一个复选框，我想启用这些单选按钮。我所拥有的不起作用。我怎么做呢?

我新。(

var sipch = document.querySelector("input[name=sip]");
sipch.addEventListener( 'change', function() {
if(sipch.checked) {
document.getElementById("protocol").disabled=false;
} else {
document.getElementById("protocol").disabled=true;
}
});

<input type="checkbox" name="sip" onsubmit="goPFive(event)" method="get">do this?
<input type="radio" class="testD" name="protocol" value="udp" disabled checked/>UDP
<input type="radio" class="testD" name="protocol" value="tcp" disabled />TCP

Answer 1

将您的单选输入与fieldset分组，然后在fieldset元素中设置禁用属性

<fieldset id="radioWrapper" disabled>
<input type="radio" name="protocol" class="testD" value="udp"/>UDP
<input type="radio" name="protocol" class="testD" value="tcp" />TCP
</fieldset>