js simple way to get radio button values in a form

This article example describes how to simply obtain radio button values in a form by JS. Share it for your reference, as follows:

The HTML part is as follows:

 <form><tr bgcolor="#FFFFFF"> <td rowspan="3" align="center" valign="middle" bordercolor="#999999"><span>Rollback type:</span></td> <td align="center" valign="middle" bordercolor="#999999"><input type="radio" name="returnTag" value="-1" checked="checked"> Reporting Department</td></tr><tr bgcolor="#FFFFFF"> <td align="center" valign="middle" bordercolor="#999999"><input type="radio" name="returnTag" value="1"> Provincial Network Tendering Center</td></tr><tr bgcolor="#FFFFFF"> <td align="center" valign="middle" bordercolor="#999999"><input type="radio" name="returnTag" value="2"> State Grid Tendering Center</td></tr></form1>

The JS code is as follows:

 function getValue(){//Get the radio button value for(var i=0;i<form1.returnTag.length;i++) { if(form1.returnTag[i].checked) { var returnTagValue=form1.returnTag[i].value; //Get the radio button value here} }}

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I hope this article will be helpful to everyone's JavaScript programming.