How to detect pressing Enter on keyboard using jQuery?

Question

I would like to detect whether the user has pressed Enter using jQuery.

How is this possible? Does it require a plugin?

EDIT: It looks like I need

Answer 1

$(function(){
  $('.modal-content').keypress(function(e){
    debugger
     var id = this.children[2].children[0].id;
       if(e.which == 13) {
         e.preventDefault();
         $("#"+id).click();
       }
   })
});