How to use Jquery to get the selected radio value in the Form_jquery

The selector provided by Jquery greatly facilitates developers to operate Dom, truly achieving the goal of code simplification but powerful functionality. The following is a small example of how to obtain the selected Radio value in the Form form, which is most commonly used in daily life.

The form is as follows:

Copy code The code is as follows:

< form name='form1' action="#" method="post">

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So how to get the selected radio value? , Juqery provides us with the following methods

Copy code The code is as follows:

$( "input[name='opType']:checked").val() -------This method is probably used more often and is easy to understand

$("input:radio:checked" ).val(); ---------This method is the simplest, but it is not easy to understand using the selector continuously
$("input[@name='opType'][checked]"); -------- Remember to write [@checked=checked] in this method. I wrote this for the first time

So, occasionally I need to traverse the radio, how to do it? Of course, each needs to appear, as follows:

Copy code The code is as follows:

$(' input[name="opType"]').each(function(){
alert(this.name this.value);
});

should Understand it. If there is any better way, you are welcome to build a building.