渲染从jQuery Ajax中选择Tag，然后从选定的选项中获取值

Question

Problem :

I create tag element ( <select> ) from Ajax jQuery, but sometimes i can't get the value from its, and sometimes i can get it.

Picture 1 *before Ajax :

Picture 2 *after Ajax :

Assumptions the elements id is : proyek.

When i tried to console it : $('#proyek').val() , it says undefined , but after i reload and try again the proccess it says it has value 17 (right value).

So sometimes i can get the value, and sometimes i cant.

---

Whole code :

html : <span id="generateProyek"></span>

jQuery : $("#generateProyek") .load("{{ this.url.getBaseUri()~"companyprojectdetail/ajaxproyek/" }}"+id,function(){});

*note : i use volt, it use {{ }} to echo something.

Answer 1

jQuery can't directly address an element that has been created after the page has been loaded. To get this done, use delegation. Since I don't have a bigger picture of your code I'll demonstrate a situation:

We have a div: $('#to_be_loaded_into') Now when we click on $('#proyek') (which is created with ajax request) we want to get the value:

$('#to_be_loaded_into').on('click, '#proyek', function(){
console.log($('#proyek').val();
)};

edit: trying to get more specific for your elements, it just might be: $('#generateProyek').on('click, '#proyek', function(){ console.log($('#proyek').val(); )};

I must first address an element that has been loaded into the html, and than refer to element inside it that has been renderd dynamically