jquery traversal checkbox method to get the value of the selected item

Source: Internet
Author: User

  This article mainly introduces the jquery traversal checkbox to get the value of the selected item, the need for friends can refer to the following

Source code:    codes are as follows: JQuery (function ($) {  $ ("Input[name= ' key ']:checkbox"). Click (function () {  var ids = ';   var flag = 0;  $ ("#ids"). attr ("value", IDS);  $ ("Input[name= ' key ']:checkbox"). each (function () {  if (true = = $ (this). attr ("checked")) {  ids + = $ (this). attr (' value ') + ', ';  flag = 1; } } ');  if (0 < flag) {  $ ("#ids"). attr ("value", IDs);  return true; }else {  alert (' Please select at least one! ');  return false; } }); });    source function:    Get the value of the checkbox for Name= ' key ' to write the values of the selected item to the hidden Domain <input type= "hidden" name= "IDs" id= "IDs" value= "/>" forms.     CORE Statement:    code is as follows: $ ("input[name= ' key ']:checkbox"). each (function () {  if (true = = $ (this). attr ( "Checked") {  IDs + $ (this). attr (' value ') + ', '; } } ';    in HTML, if a check box is selected, the corresponding tag is checked= " Checked ". But if you use jquery alert ($ ("#id"). attr ("Checked"), you will be prompted to be "true" instead of "checked", so determine if ("Checked" ==$ ("#id"). attr ("ChEcked ")) is wrong and should be written as above: if (true = = $ (" #id "). attr (" checked "))    

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