javascript - getting jquery fields from a List -

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in below jsp code fields hard code can fields using loop list may grow dynamically

  list list=[userid,firstname,lastname,email];

for every new request list may grow or shrink dynamically depends on columns of table present in database ,so there way field name without hard coding..

 <%@ page language="java" contenttype="text/html; charset=iso-8859-1"         pageencoding="iso-8859-1"%>     <!doctype html public "-//w3c//dtd html 4.01 transitional//en" "http://www.w3.org/tr/html4/loose.dtd">     <html>     <head>     <meta http-equiv="content-type" content="text/html; charset=iso-8859-1">     <!-- include 1 of jtable styles. -->     <link href="css/metro/crimson/jtable.css" rel="stylesheet" type="text/css" />     <link href="css/jquery-ui-1.10.3.custom.css" rel="stylesheet" type="text/css" />     <!-- include jtable script file. -->     <script src="js/jquery-1.8.2.js" type="text/javascript"></script>     <script src="js/jquery-ui-1.10.3.custom.js" type="text/javascript"></script>     <script src="js/jquery.jtable.js" type="text/javascript"></script>     <script type="text/javascript">         $(document).ready(function () {             $('#persontablecontainer').jtable({                 title: 'table of people',                 paging: true, //enable paging                 pagesize: 10, //set page size (default: 10)                            actions: {                     listaction: 'crudcontroller?action=list',                     createaction:'crudcontroller?action=create',                     updateaction: 'crudcontroller?action=update',                     deleteaction: 'crudcontroller?action=delete'                 },                 fields: {                     userid: {                         title:'s.no',                         key: true,                         list: true,                         create:true                     },                     firstname: {                         title: 'first name',                         width: '30%',                         edit:false                     },                     lastname: {                         title: 'last name',                         width: '30%',                         edit:true                     },                     email: {                         title: 'email',                         width: '20%',                         edit: true                     }                                 }             });             $('#persontablecontainer').jtable('load');         });     </script>     </head>     <body>     <div style="width:60%;margin-right:20%;margin-left:20%;text-align:center;">     <div id="persontablecontainer"></div>     </div>     </body>     </html>

this can achieved iterating on list

<%     httpsession sec = request.getsession();   list<string> columnslist=(list<string>)sec.getattribute("columnslist"); %>  <script type="text/javascript"> var jsarray = [<%for (int = 0; < columnslist.size(); i++) {%>"<%=columnslist.get(i)%>"<%=i + 1 < columnslist.size() ? ",":""%><%}%>];  var fields={}; var arraylength = jsarray.length;  for(var i=0;i<arraylength;i++)     { fields[jsarray[i]] = {     title: jsarray[i],    width: '40%',   }; }      $(document).ready(function() {         $('#persontablecontainer').jtable({             title : 'table of people',             paging : true, //enable paging             sorting: true, //enable sorting             defaultsorting: 'name asc', //set default sorting             pagesize : 10, //set page size (default: 10)                 actions : {                 listaction : 'data?action=list'              },             fields : fields });       //load records when page first shown         $('#persontablecontainer').jtable('load');   });  </script>

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