How to count the number of options in select using jquery

Question

I want to compare the number of items in two select elements(HTML). I tried using length property(with jquery) but it always says that both select element have number of option =1. I am populating both the select elements dynamically. What to do?

      var $options=$("#test_select");
     $options.empty();
     $.each(t_test_list,function(index,value){
    $options.append($("<option>").text(value).attr("value",value));
     });

     var numdate=$("#date_select").length;
var numtest=$("#test_select").length;
alert(numdate);
alert(numtest);
if(numdate!=numtest)
    {
    alert("The number of dates do not match test cases!!!");
    }

it would be answerable if you post your code.

Rajaprabhu Aravindasamy
– Rajaprabhu Aravindasamy

2014-04-24 12:35:43 +00:00
Commented Apr 24, 2014 at 12:35 — Rajaprabhu Aravindasamy
– Rajaprabhu Aravindasamy, Commented Apr 24, 2014 at 12:35

Awlad Liton · Accepted Answer · 2014-04-24 12:45:10Z

7

try this:

Change:

var numdate=$("#date_select").length;
var numtest=$("#test_select").length;

to:

var numdate=$("#date_select").children('option').length;
var numtest=$("#test_select").children('option').length;

you need to get options length which are the children of select not the select length.

edited Apr 24, 2014 at 12:45

answered Apr 24, 2014 at 12:35

Awlad Liton

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3 Comments

Awlad Liton Over a year ago

@RajaprabhuAravindasamy yes you are right. i should not answer it before he post his attempt.

edge Over a year ago

@Awlad Liton It is good to see that you already knew what mistake would have been there :)

Andy Over a year ago

Just curious. Is there a reason you are using $("#test_select").children('option') instead of just $('#date_select>option')?

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