HTML &lt;select style=&quot;margin-left: 10px;&quot; id=&quot;myDropDown&quot;&gt;         &lt;option value='' disabled selected&gt;Assign Table&lt;/option&gt;         &lt;option value='1'&gt;Table1&lt;/option&gt;         &lt;option value='2'&gt;Table2&lt;/option&gt;         &lt;option value='3'&gt;Table3&lt;/option&gt;     &lt;/select&gt; &lt;div id=&quot;myTable&quot;&gt;                    &lt;/div&gt;         &lt;input type=&quot;text&quot; id=&quot;total&quot; value=&quot;0&quot; readonly=&quot;readonly&quot; /&gt;  Javascript $('#myDropDown').change(function() {         //Selected table         var inputValue = $(this).val();         var HTML;         var HTML2;         if (inputValue == 1) {         HTML = '&lt;div&gt;&lt;input id=&quot;test-element&quot; type=&quot;checkbox&quot; price=&quot;1&quot;&gt;price 1&lt;/div&gt;&lt;br&gt;&lt;div&gt;&lt;input id=&quot;test-element&quot; type=&quot;checkbox&quot; price=&quot;2&quot;&gt;price 2 &lt;/div&gt;';        }        else if(inputValue == 2) {        HTML = '&lt;div&gt;&lt;input id=&quot;test-element&quot; type=&quot;checkbox&quot; price=&quot;3&quot;&gt;price 3 &lt;/div&gt;&lt;br&gt;&lt;div&gt;&lt;input id=&quot;test-element&quot; type=&quot;checkbox&quot; price=&quot;4&quot;&gt;price 4 &lt;/div&gt;';       }       document.getElementById('myTable').innerHTML = HTML;    });          function calcAndShowTotal(){     var total = 0;     $('#myTable :checkbox[checked]').each(function(){         total += parseFloat($(this).attr('price')) || 0;         alert(&quot;working&quot;);     });     $('#total').val(total);    }  $(document).on(&quot;click&quot;,'#myTable :checkbox',function() {       //alert(&quot;working&quot;);     calcAndShowTotal(); });  calcAndShowTotal();  I made a dropdown that toggles between different checkboxes with .innerHTML. I updated the click function to be $(document).on and it works on every click but the total value doesn't change. Why doesn't calcAndShowTotal function work? I tried changing it to $(document).on too but it doesn't calculate total. Check fiddle link for example.
I have a bit of code where I am looping through all the select boxes on a page and binding a .hover event to them to do a bit of twiddling with their width on mouse on/off.  This happens on page ready and works just fine.  The problem I have is that any select boxes I add via Ajax or DOM after the initial loop won't have the event bound.  I have found this plugin (), but before I add another 5k to my pages with a plugin, I want to see if anyone knows a way to do this, either with jQuery directly or by another option.
How can I implement "cut outs" for lighting in OpenGL? So, I'm working with OpenGL (I'm not exactly sure of the version), and I want to do an old-style lighting setup by essentially drawing a black rectangle over the screen, and drawing white circles over the areas that should be lit. I already have the rectangle and the circles, but I can't figure out how to make it so that the white circles are transparent when applied to the black areas. Any ideas? I tried to use blending modes, but it still evades me...  EDIT: Here's the code that I'm using (Python).  view_buf = Buffer(GL_INT, 4) glGetIntegerv(GL_VIEWPORT, view_buf) view = view_buf.to_list() if hasattr(view_buf, "to_list") else view_buf.list  glDisable(GL_DEPTH_TEST)  glDisable(GL_LIGHTING)  glEnable(GL_BLEND)  if logic.lights['smooth']:     glEnable(GL_LINE_SMOOTH)  # # Make sure we're using smooth shading instead of flat # glShadeModel(GL_SMOOTH)  # Setup the matrices  glMatrixMode(GL_PROJECTION) glPushMatrix() glLoadIdentity() gluOrtho2D(0, view[2], 0, view[3]) glMatrixMode(GL_MODELVIEW) glPushMatrix() glLoadIdentity()  #glAlphaFunc(GL_GREATER, 0.5)  glColor4f(0.0, 0, 0, 0.75)  glBegin(GL_QUADS);                              # Draw Black screen glVertex2d(0.0, 0.0); glVertex2d(view[2], 0.0); glVertex2d(view[2], view[3]); glVertex2d(0.0, view[3]); glEnd()  glColor4f(1, 1, 1, 1)  degtorad = 3.14159/180.0   glBlendFunc(GL_ZERO, GL_SRC_ALPHA)  def DrawCircle(x, y, radius, fill = 1, step = 11):      glVertex2f(x, y)      if fill:         glBegin(GL_TRIANGLE_FAN)     else:         glBegin(GL_LINE_LOOP)      for a in range(0, 360, step):         angle = degtorad * a         glVertex2f(x + (sin(angle) * radius), y + (cos(angle) * radius))      glEnd()   #for layer in range(len(logic.lights['layers'])): #   size =  for light in logic.lights['points']:     DrawCircle(light[0][0] * view[2], (1 - light[0][1]) * view[3], light[1], step = light[2])     if logic.lights['smooth']:         DrawCircle(light[0][0] * view[2], (1 - light[0][1]) * view[3], light[1], 0, light[2])  # Reset the state glPopMatrix() glMatrixMode(GL_PROJECTION) glPopMatrix() I went through a , but the answer was informing how to hide the monitor, but not how to disable it. I do not want any new windows to creep into the laptop display when the external display is connected. I could not find any in the Display Settings (under System Preferences). I don't want to close the lid because I think it impacts the air flow of the MacBook Pro. I don't want to close the lid because the sound quality is reduced. I am trying to convince my friend that the integral of $0$ is $C$, where $C$ is an arbitrary constant. He can't seem to grasp this concept. Can you guys help me out here? He keeps saying it is $0$. What is the number of strings at size $n$ that is constructed from ${a,b,c,d}$ and there is an even num of $a$ HTML escapes appearing in node titles on bespoke content type — substitutions? Difference between `dpkg -i` and `apt-get install` From all the other Q&amp;A (like: ) I understand that apt-get is a wrapper over dpkg and provides dependency management.  Assuming I'm installing something that doesn't have any dependencies (or they're also installed at the same time) would there be any difference between installing it using apt-get vs dpkg  E.g. (kinda concrete differences I'm looking for)   say dpkg can not download the pkg from somewhere, I must download before starting installation, whereas apt-get will do this on my behalf. dpkg won't configure pkg, it'll only copy files. apt-get will configure too.   ... Is there any standard that covers the portability of running a command after variable assignment on the same line?  APPLE="cider" echo hi   How portable is something like that? Where will it work and where won't it?   Also: my shell scripts start with #!/bin/sh if that makes any difference. Let $a_{n+1}=\sqrt{a_1+a_2+\cdots+a_n}$ .Prove that $ \lim\limits_{n \rightarrow \infty} \frac{a_n}{n}=\frac{1}{2}$ A sequence $a_n$ is defined as $a_1=1$ and $a_{n+1}=\sqrt{a_1+a_2+\cdots+a_n}$ .Prove that $ \lim\limits_{n \rightarrow \infty} \frac{a_n}{n}=\frac{1}{2}$  I have no idea how to approach this. But I have a feeling that Cesaro's lemma may come in handy Discoveryd Alternative to Replace mDNSResponder Argument? This is a direct follow-on to . , I'd add the "-AlwaysAppendSearchDomains" argument to the mDNSResponder plist file so that all local resolver lookups added the search domains, regardless of whether there was a period in the label to be looked up. For example, whether I try to ssh to hostname foo.bar or foo, the search domain of baz.com should be tried, not only for the latter case, as was (and is) the default behavior.   Now, it looks like the mDNSResponder is gone, replaced with discoveryd. I cannot find a similar option to get it to always appending the search domain. Suggestions? I'd rather not go the route of using a non-default local resolver, but I'd consider it as an option. For now, I'll just type in the long FQDNs, but I'd really rather not.  Thanks, Pete House address is not listed on Google Maps When I search for my address on Google Maps it cannot be found which means I can't order takeaway etc.  Is there a way of adding my address to Google Maps or even add a street address?  I want the address to be publicly available so others can search it. What is the easiest way to parse an INI File in C++? I'm trying to parse an INI file using C++. Any tips on what is the best way to achieve this? Should I use the Windows API tools for INI file processing (with which I am totally unfamiliar), an open-source solution or attempt to parse it manually? How do you add more than one material to a mesh?   I have tried adding two materials to the object, and then assigning one of the materials to a vertex-group, but I could not find a place to assign it.  I am making a striped bouncy ball that I want to deform, so adding a different material by separating the mesh into different objects would not be ideal. Any data for average number of papers per year at different career stages? Footnote citations in biblatex ignore spacing before the citation command; how can I have the same behavior for all footnotes in a document?  Here's a MWE demonstrating the issue:  \documentclass{article} \usepackage[style=verbose-trad2]{biblatex} \addbibresource{biblatex-examples.bib} \begin{document} Spacing is fine before citations     \autocite{kant:kpv}  but not before footnotes    \footnote{A footnote \autocite{kant:ku}}. \end{document} PHPExcel Sumif and Skip Case of the 'mice problem' for $n=3$ Get selected value in dropdown list using JavaScript How to capture Control+D signal? Process Unicode files with BOM correctly with POSIX tools What should i use for better performance, nine-patch or drawable xml resource?