check radio button is checked using JQuery

Given a group of radio buttons:

<input type="radio" id="radio1" name="radioGroup" value="1">
<input type="radio" id="radio2" name="radioGroup" value="2">
<input type="radio" id="radio1" name="radioGroup" value="1">
<input type="radio" id="radio2" name="radioGroup" value="2">

1. <code>
2. <input type="radio" id="radio1" name="radioGroup" value="1">
3. <input type="radio" id="radio2" name="radioGroup" value="2">
4. </code>

<code>
<input type="radio" id="radio1" name="radioGroup" value="1">
<input type="radio" id="radio2" name="radioGroup" value="2">
</code>

You can test whether a specific one is checked using jQuery as follows:

if ($("#radio1").prop("checked")) {
   // do something
}

// OR
if ($("#radio1").is(":checked")) {
   // do something
}

// OR if you don't have ids set you can go by group name and value
// (basically you need a selector that lets you specify the particular input)
if ($("input[name='radioGroup'][value='1']").prop("checked"))
if ($("#radio1").prop("checked")) {
   // do something
}

// OR
if ($("#radio1").is(":checked")) {
   // do something
}

// OR if you don't have ids set you can go by group name and value
// (basically you need a selector that lets you specify the particular input)
if ($("input[name='radioGroup'][value='1']").prop("checked"))

1. <code>
2. if ($("#radio1").prop("checked")) {
3. // do something
4. }
6. // OR
7. if ($("#radio1").is(":checked")) {
8. // do something
9. }
11. // OR if you don't have ids set you can go by group name and value
12. // (basically you need a selector that lets you specify the particular input)
13. if ($("input[name='radioGroup'][value='1']").prop("checked"))
14. </code>

<code>
if ($("#radio1").prop("checked")) {
   // do something
}

// OR
if ($("#radio1").is(":checked")) {
   // do something
}

// OR if you don't have ids set you can go by group name and value
// (basically you need a selector that lets you specify the particular input)
if ($("input[name='radioGroup'][value='1']").prop("checked"))
</code>