jquery's Value and assignment operation code for form elements _jquery

$ ("#keyword") [0].value = "";


/* Get the Text.areatext value * *
var textval = $ ("#text_id"). attr ("value");
Or
var textval = $ ("#text_id"). Val ();

/* Get the value of the radio button * *
var Valradio = $ ("input[type=radio]:checked"). Val ();

/* Get a set of radio items named (items) the value of the selected item * *
var item = $ (' input[name=items]:checked '). Val ();

/* Get check box value * *
var checkboxval = $ ("#checkbox_id"). attr ("value");

/* Get the value of the Drop-down list * *
var selectval = $ (' #select_id '). Val ();

/* text box, text area * *
$ ("#text_id"). attr ("value");/empty content
$ ("#text_id"). attr ("value", ' test ');//fill content

/* Multi-selection box checkbox*/
$ ("#chk_id"). attr ("checked");//Leave it unchecked
$ ("#chk_id"). attr ("Checked", true);//tick
if ($ ("#chk_id"). attr (' checked ') ==true)//judge whether it has been selected

/* Single select group radio*/
$ ("Input[type=radio]"). attr ("Checked", ' 2 ');//Set value=2 item as current selected

/* Dropdown box select*/
$ ("#select_id"). attr ("value", ' test ');//Set Value=test item is currently selected
$ ("Testtest2"). Appendto ("#select_id")//option to add a drop-down box
$ ("#select_id"). empty ();//Empty Drop-down box

/* Get a set of radio items named (items) the value of the selected item * *
var item = $ (' input[name=items]:checked '). Val (); Val () = undefined if it is not selected

/* Get the text of the Select selected item/*
var item = $ ("Select[name=items] option:selected"). Text ();

The second element of the/*select drop-down box is the current selected value.
$ (' #select_id ') [0].selectedindex = 1;

/*radio the second element of the radio group is the current selected value.
$ (' input[name=items] '). Get (1). checked = true;

/* Reset Form * *
$ ("form"). each (function () {
. Reset ();
});
jquery values and assigns HTML elements

jquery gives the base control a value, assignment Textbox:var str = $ (' #txt '). Val (); $ (' #txt '). Val ("Set Lbl Value"); text box, text area: $ ("#text_id"). attr ("Value", "");/empty contents $ ("#text_id"). attr ("value", ' test ');/fill Content
jquery gives the base control a value, an assignment

Textbox:
var str = $ (' #txt '). Val ();

$ (' #txt '). Val ("Set Lbl Value");

text box, text area:
$ ("#text_id"). attr ("Value", "");/empty content
$ ("#text_id"). attr ("value", ' test ');//fill content
Lable:

var str = $ (' #lbl '). Text ();

$ (' #lbl '). Text ("Set lbl Value");

var Valradio = $ ("input[@type =radio][@checked]"). Val ();
var item = $ (' input[@name =items][@checked] '). Val ();
var checkboxval = $ ("#checkbox_id"). attr ("value");
var selectval = $ (' #select_id '). Val ();
Multi-selection box checkbox:
$ ("#chk_id"). attr ("Checked", "");//Leave it unchecked
$ ("#chk_id"). attr ("Checked", true);//tick
if ($ ("#chk_id"). attr (' checked ') ==true)//judge whether it has been selected
Radio Group Radio:

$ ("input[@type =radio]"). attr ("Checked", ' 2 '); Set the value=2 item to the current selected item

Dropdown box Select:
$ ("#select_id"). attr ("value", ' test ');//Set Value=test item is currently selected
$ ("<option value= ' test ' >test</option><option value= ' test2 ' >test2</option>"). Appendto ("# select_id ")/option to add a dropdown box
$ ("#select_id"). empty ();//Empty Drop-down box

Gets the value of a set of radio selected items named (items)
var item = $ (' input[@name =items][@checked] '). Val ()//If not selected, val () = undefined
Gets the text of the Select selected item
var item = $ ("select[@name =items] option[@selected]"). Text ();
The second element of the Select Drop-down box is the currently selected value
$ (' #select_id ') [0].selectedindex = 1;
Radio the second element of a radio group is the currently selected value
$ (' input[@name =items] '). Get (1). checked = true;

Resetting a form
$ ("form"). each (function () {
. Reset ();
});
Summary: jquery gives the base control a value, assignment Textbox:var str = $ (' #txt '). Val (); $ (' #txt '). Val ("Set Lbl Value"); text box, text area: $ ("#text_id"). attr ("Value", "");/empty contents $ ("#text_id"). attr ("value", ' test ');/fill Content
jquery gives the base control a value, an assignment

Textbox:
var str = $ (' #txt '). Val ();

$ (' #txt '). Val ("Set Lbl Value");

text box, text area:
$ ("#text_id"). attr ("Value", "");/empty content
$ ("#text_id"). attr ("value", ' test ');//fill content
Lable:

var str = $ (' #lbl '). Text ();

$ (' #lbl '). Text ("Set lbl Value");

var Valradio = $ ("input[@type =radio][@checked]"). Val ();
var item = $ (' input[@name =items][@checked] '). Val ();
var checkboxval = $ ("#checkbox_id"). attr ("value");
var selectval = $ (' #select_id '). Val ();
Multi-selection box checkbox:
$ ("#chk_id"). attr ("Checked", "");//Leave it unchecked
$ ("#chk_id"). attr ("Checked", true);//tick
if ($ ("#chk_id"). attr (' checked ') ==true)//judge whether it has been selected
Radio Group Radio:

$ ("input[@type =radio]"). attr ("Checked", ' 2 '); Set the value=2 item to the current selected item

Dropdown box Select:
$ ("#select_id"). attr ("value", ' test ');//Set Value=test item is currently selected
$ ("<option value= ' test ' >test</option><option value= ' test2 ' >test2</option>"). Appendto ("# select_id ")/option to add a dropdown box
$ ("#select_id"). empty ();//Empty Drop-down box

Gets the value of a set of radio selected items named (items)
var item = $ (' input[@name =items][@checked] '). Val ()//If not selected, val () = undefined
Gets the text of the Select selected item
var item = $ ("select[@name =items] option[@selected]"). Text ();
The second element of the Select Drop-down box is the currently selected value
$ (' #select_id ') [0].selectedindex = 1;
Radio the second element of a radio group is the currently selected value
$ (' input[@name =items] '). Get (1). checked = true;

Resetting a form
$ ("form"). each (function () {
. Reset ();
});