Answers for "jquery find which button was clicked"

jquery on click get element

$(document).on("click",".appDetails", function () {
   var clickedBtnID = $(this).attr('id'); // or var clickedBtnID = this.id
   alert('you clicked on button #' + clickedBtnID);
});

detect button click jquery

$(".btn").click(function(){
  var clk = $(this).attr("id");
});