Jquery gets the radio value (single-choice group radio), jqueryradio

Jquery gets the radio value (single-choice group radio), jqueryradio

Radio Group radio: $ ("input [@ type = radio] [@ checked]"). val ();

Radio Group radio: $ ("input [@ type = radio]"). attr ("checked", '2'); // set the project with value = 2 as the currently selected item

Obtains the value of a set of radio selected items.

Var item = $ ('input [@ name = items] [@ checked] '). val ();

The second element of the radio Group is the currently selected value.

$ ('Input [@ name = items] '). get (1). checked = true

Radio Group radio: $ ("input [@ type = radio]"). attr ("checked", '2'); // set the project with value = 2 as the currently selected item

Old jquery version

Var_name = $ ("input [@ name = 'Radio _ name']: checked"). val ();

Versions later than jquery 1.3

Var_name = $ ("input [name = 'Radio _ name']: checked"). val ();

View A jquery instance that obtains the radio value.

Function getra () {var_name = $ ("input [name = 'isspecialcnt ']: checked "). val (); // alert (var_name); if (var_name = '1') {$ ("# isspecialcntyes "). show (); $ ("# isspecialcntno "). hide ();} if (var_name = '0') {$ ("# isspecialcntyes "). hide (); (www.jb51.net) $ ("# isspecialcntno "). show ();}} <form name = "form1" method = "post" action = ""> <p> <label> <input type = "radio" name = "radiogroup1" value = "single choice" id = "radiogroup1_0"> single choice </label> <br> <label> <input type = "radio" name = "radiogroup1" value = "single choice" id = "radiogroup1_1"> single choice </label> <br> <label> <input type = "radio" name = "radiogroup1" value = "single choice" id = "radiogroup1_2"> single choice </label> <br> <label> <input type = "radio" name = "radiogroup1" value = "single choice" id = "radiogroup1_3"> single choice </label> <br> <label> <input type = "radio" name = "radiogroup1" value = "single choice" id = "radiogroup1_4"> single choice </label> <br> <label> <input type = "radio" name = "radiogroup1" value = "single choice" id = "radiogroup1_5"> single choice </label> <br> </p> </form>

How does jQuery obtain the radio value of the selected radio button?

When using jquery to obtain the radio value, the most important thing is to master the use of the jquery selector. in a form, we usually need to obtain the value of the selected radio item, therefore, you need to add checked for filtering, such as the following radio items:

1. <input type = "radio" name = "testradio" value = "jquery gets the radio value"/> jquery gets the radio value
2. <input type = "radio" name = "testradio" value = "jquery get checkbox value"/> jquery get checkbox value
3. <input type = "radio" name = "testradio" value = "jquery gets the select value"/> jquery gets the select value
To obtain a radio value, you can use the following methods:
1,

1. $ ('input [name = "testradio"]: checked'). val (); 2,
1. $ ('input: radio: checked'). val (); 3,
1. $ ('input [@ name = "testradio"] [checked] '); 4,
1. $ ('input [name = "testradio"] '). filter (': checked'); it's almost full. If we want to traverse all radio whose name is testradio, the Code is as follows:

1. $ ('input [name = "testradio"] '). each (function () {2. alert (this. value); 3 .}); if you want to obtain a specific radio value, such as the Second radio value, write
1. $ ('input [name = "testradio"]: eq (1) '). val ()

How can I use jquery to obtain the radio value of the selected button?

Var val;
$ ("# IsExchangeDay"). each (function (){
If ($ (this). attr ("checked ")){
Val = $ (this). attr ("value ")

}

});
Alert (val );

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