alert not showing

[football-fastball]

Nice library indeed!
Just noticed this issue, the code below is not showing the alert as its should show the alert from the function of the click event of the button.

$(document).ready(function() {
      $( 'body' ).append( "<input type='button' id='alertdiv' value='Text of Alert Button' style='cursor:pointer' />" );
      $('#alertdiv').click(function() {alert("Hello, world!");});
});

[pablomayobre]

I think this wouldnt work with jQuery either, since the #alertdiv element may not be ready when you try to apply the click handler, try doing something like:

$(document).ready(function() {
      $('body').append("<input type='button' id='alertdiv' value='Text of Alert Button' style='cursor:pointer' />");
      $('body').click(function(event) {
            if ($(event.target).is('#alertdiv')){
                  alert("Hello, world!");
            }
      });
});

Since body will be ready on document.ready you can attach handlers to it, if onclick is triggered, it will change if the event.target is the alertdiv button, and if it is make an alert pop-up

PS: In jQuery you have the advantage with the selector attribute for on so you could do it with a simpler code:

$(document).ready(function() {
      $('body').append("<input type='button' id='alertdiv' value='Text of Alert Button' style='cursor:pointer' />");
      $('body').on('click', '#alertdiv', function(event) {
            alert("Hello, world!");
      });
});

[football-fastball]

I have tested that jQuery 2.1.3 does run both your code examples as well as the example I provided.

[albatros2ko]

Isn't there a .trigger(...) function? Why use .click(...)?

This one works for me (tested on both Chrome and Firefox). And .click(..); isn't defined or at least, implemented yet.

$(document).ready(function () {
  $("body").append('<input id="alertdiv" type="button" value="Text of Alert Button" style="cursor:pointer" />');
  $("#alertdiv").on("click", function () { alert("Hello!"); });
});

[bendc]

@vkeusebio is right, Sprint doesn't support shorthand methods like .click(), you should use the generic .on() instead.