Adding click event for a button created dynamically using jQuery [duplicate]

Question

How to add a button click event on a button that was added dynamically using jQuery?

The jQuery code that adds the dynamic buttons inside a div container:

$('#pg_menu_content').empty(); $div = $('<div data-role="fieldcontain"/>'); $("<input type='button' value='Dynamic Button' id='btn_a' />").appendTo($div.clone()).appendTo('#pg_menu_content'); 

Question 1: How can I add a click event for the above button? I tried the below and it has not triggered

$("#btn_a").click(function(){   alert ('button clicked'); }); 

Question 2: How can I get the value of the button inside the click event? For example I want to get the value 'Dynamic Button' inside the click event function.

Can you guys please help me on this.

Answer 1

Use a delegated event handler bound to the container:

$('#pg_menu_content').on('click', '#btn_a', function(){     console.log(this.value); }); 

That is, bind to an element that exists at the moment that the JS runs (I'm assuming #pg_menu_content exists when the page loads), and supply a selector in the second parameter to .on(). When a click occurs on #pg_menu_content element jQuery checks whether it applied to a child of that element which matches the #btn_a selector.

Either that or bind a standard (non-delegated) click handler after creating the button.

Either way, within the click handler this will refer to the button in question, so this.value will give you its value.