当元素由脚本动态生成并通过 class 选择器访问时，如何在 Jquery 中的单击事件上调用 function？

Question

I am generating an anchor tag through script with class 'section-delete-btn':

<a class='section-delete-btn' role='button' id = '" + $("#section_name").val() + "'href='#'><i class='section-delete-btns fa fa-trash-o' aria-hidden='true'></i></a>

I am trying to access the a tag through class selector like this:

//delete a section
$('a').on('click','.section-delete-btn',function(){
  //get section name
  var section_name = $(this).attr('id');
  alert(section_name);
});

Answer 1

You are already using a delegate listener, but it will fail if, at the time of attaching the listener, your document does not have any a elements. Instead, use document :

$(document).on('click','a.section-delete-btn',function(){
  //get section name
  var section_name = $(this).attr('id');
  alert(section_name);
});