The html code as the following:<input type="radio" name="disableStatus" value="O" >Active
<input type="radio" name="disableStatus" value="H" checked="checked">DisabledjavaScript code:alert(document.form.disableStatus);
result:[object]alert(document.form.disableStatus.value);
result:[undefined]alert(document.form.disableStatus.checked);
result:[undefined]why?
<input type="radio" name="disableStatus" value="H" checked="checked">DisabledjavaScript code:alert(document.form.disableStatus);
result:[object]alert(document.form.disableStatus.value);
result:[undefined]alert(document.form.disableStatus.checked);
result:[undefined]why?
alert(document.getElementsByName("disableStatus")[1].value);
for(var i=0;i<a.length;i++){
alert(a[i].checked)
alert(i)
}
var i = 0;
for (;i < anyRadio.length; i++){
if (anyRadio[i].checked){
break;
}
}
alert(anyRadio[i].value) //这个就是被选中的那个radio的值