jquery to determine if radio button radio is selected

Source: Internet
Author: User

This example describes the method that jquery determines whether radio button radio is selected. Share to everyone for your reference. Specifically as follows:

The HTML code is as follows:


1 2 3 <input type= "Radio" id= "D1" name= "RA" value= "a" checked= "checked"/> <input "type=" Radio "id=" D2 "RA" value = "B"/> <input type= "Radio" id= "D3" Name= "Ra" value= "C"/>

1. Get ID when loading page


1 2 3 4 5 6 7 8 $ ("input[type= ' Radio ']"). each (function () {var id= $ (this). attr ("id"); if ($ ("#" +id). attr ("checked") = = "Checked") {var fs=$ ("#" +id). Val (); } }); var S1 = $ (". Aa:checked"). Val (); . AA is class var S2 = $ ("Input[name= ' ra ']:checked"). Val ();

2. Get ID when clicking the button


1 2 3 4 5 6 $ (function () {$ (' input[type= ' Radio ']). Click (function () {var id= $ (this). attr ("id"); alert (ID);});

I hope this article will help you with your jquery programming.

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