jQuery assigning value to array giving error Undefined variable

Question

I'm assigning values to array in forloop But it gives an error that array variable is undefine. following is my code.

$(document).ready(function(){

   $("#SubmitBtn").live('click',function(){

        var cnt = $("#TotalCnt").val();
        var data = [];

        for(var i=1; i<=cnt; i++)
        {
           var fname = $('#fname_'+i).val();
           var lname = $('#lname_'+i).val();
           var address = $('#address_'+i).val();

           data[i]["fname"] = fname;
           data[i]["lname"] = lname;
           data[i]["address"] = address;
        }

   });

});

when I'm assigning value to array it gives error "data[i] is undefined"

Just out of curiosity, which jQuery version are you using?

Roko C. Buljan
– Roko C. Buljan

2015-01-20 07:03:14 +00:00
Commented Jan 20, 2015 at 7:03 — Roko C. Buljan
– Roko C. Buljan, Commented Jan 20, 2015 at 7:03

Rajaprabhu Aravindasamy · Accepted Answer · 2015-01-20 06:58:36Z

3

Try to create an empty object first, because initially data[i] is undefined. And undefined does not contains any property under it.

$(document).ready(function(){

   $("#SubmitBtn").live('click',function(){

        var cnt = $("#TotalCnt").val();
        var data = [];

        for(var i=1; i<=cnt; i++)
        {
           var fname = $('#fname_'+i).val();
           var lname = $('#lname_'+i).val();
           var address = $('#address_'+i).val();
           data[i] = {};
           data[i]["fname"] = fname;
           data[i]["lname"] = lname;
           data[i]["address"] = address;
        }

   });

});

answered Jan 20, 2015 at 6:58

Rajaprabhu Aravindasamy

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