Jquery radio value, checkbox value, select value, Radio selected value

1. Check whether checkbox is selected

$ ("Ul Li input"). Each (function (){
If ($ (this). ATTR ("checked") = true ){
Arr. Push ($ (this). ATTR ("value "));
}
});
Alert (ARR. tostring ());

2. Obtain the radio value.

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 ();
The difference is that the old version has @.

Jquery radio value, checkbox value, select value, Radio selected,

VaR item = $ ('input [@ name = items] [@ checked] '). Val ();
Obtain the text of the selected select item.

VaR item = $ ("select [@ name = items] Option [@ selected]"). Text ();
The second element in the select drop-down box is the selected value.

$ ('# Select_id') [0]. selectedindex = 1;
The second element of the radio Radio Group is the currently selected value.

$ ('Input [@ name = items] '). Get (1). Checked = true;
Get value:

Text Box, text area: $ ("# TXT"). ATTR ("value ");

Multiple choice box checkbox: $ ("# checkbox_id"). ATTR ("value ");

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

Drop-down box select: $ ('# sel'). Val ();

Control form elements:

Text Box, text area: $ ("# TXT"). ATTR ("value", "); // clear the content

$ ("# TXT"). ATTR ("value", '11'); // fill in the content
Multiple choice box checkbox: $ ("# CHK1"). ATTR ("checked", "); // do not check

$ ("# CHK2"). ATTR ("checked", true); // check

If ($ ("# CHK1"). ATTR ('checked') = undefined) // you can check whether the checked has been checked.
Radio Group radio: $ ("input [@ type = radio]"). ATTR ("checked", '2'); // set the project with value = 2 as the currently selected item
Drop-down box select: $ ("# Sel"). ATTR ("value", '-sel3'); // set the value =-sel3 project to the currently selected item

$ ("<Optionvalue = '1'> 1111 </option> <optionvalue = '2'> 2222 </option>"). appendto ("# sel") // Add
Option in the drop-down list

$ ("# Sel"). Empty (); // clear the drop-down list
Obtains the value of a set of Radio selected items.

VaR item = $ ('input [@ name = items] [@ checked] '). Val ();
Obtain the text of the selected select item.

VaR item = $ ("select [@ name = items] Option [@ selected]"). Text ();
The second element in the select drop-down box is the selected value.

$ ('# Select_id') [0]. selectedindex = 1;
The second element of the radio Radio Group is the currently selected value.

$ ('Input [@ name = items] '). Get (1). Checked = true;
Get value:

Text Box, text area: $ ("# TXT"). ATTR ("value ");
Multiple choice box checkbox: $ ("# checkbox_id"). ATTR ("value ");
Radio Group radio: $ ("input [@ type = radio] [@ checked]"). Val ();
Drop-down box select: $ ('# sel'). Val ();
Control form elements:

Text Box, text area: $ ("# TXT"). ATTR ("value", "); // clear the content
$ ("# TXT"). ATTR ("value", '11'); // fill in the content
Multiple choice box checkbox: $ ("# CHK1"). ATTR ("checked", "); // do not check
$ ("# CHK2"). ATTR ("checked", true); // check
If ($ ("# CHK1"). ATTR ('checked') = undefined) // you can check whether the checked has been checked.
Radio Group radio: $ ("input [@ type = radio]"). ATTR ("checked", '2'); // set the project with value = 2 as the currently selected item
Drop-down box select: $ ("# Sel"). ATTR ("value", '-sel3'); // set the value =-sel3 project to the currently selected item
$ ("<Option value = '1'> 1111 </option> <option value = '2'> 2222 </option> "). appendto ("# sel") // Add the option in the drop-down box
$ ("# Sel"). Empty (); // clear the drop-down list