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How do I implement basic “Long Polling”?
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<div id="messages">
<div>
<span class="from">First!:</span>
<span class="msg">Welcome to chat. Please don't hurt each other.</span>
</div>
</div>
<form method="post" action="#">
<div>Nick: &...
How can I automatically deploy my app after a git push ( GitHub and node.js)?
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In the build.sh you will need to put usual commands to retrieve your site from github
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HTML5 check if audio is playing?
...t; 2;
}
I think most of the flags on the audio element are obvious apart from the ready state which you can read about here: MDN HTMLMediaElement.readyState.
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test if event handler is bound to an element in jQuery [duplicate]
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You can get this information from the data cache.
For example, log them to the console (firebug, ie8):
console.dir( $('#someElementId').data('events') );
or iterate them:
jQuery.each($('#someElementId').data('events'), function(i, event){
jQuer...
Int division: Why is the result of 1/3 == 0?
...r question, you can do 1.0/3 ; the 1.0 is a double.
If you get the values from elsewhere you can use (double) to turn the int into a double.
int x = ...;
int y = ...;
double value = ((double) x) / y;
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Foreach loop, determine which is the last iteration of the loop
... foreach loop and need to execute some logic when the last item is chosen from the List , e.g.:
26 Answers
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css transform, jagged edges in chrome
... that other people are having issues too at 45deg increments so I adjusted from -45deg to -45.0001deg and my problem was solved.
In my CSS below, background-size was initially 30px and the deg for the background gradient was exactly -45deg, and all keyframes were 30px 0.
@-webkit-keyframes pro...
Python: reload component Y imported with 'from X import Y'?
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@cschol: Zen of Python, last verse (import this from interactive prompt to see the Zen of Python); and all the reasons why namespaces are a honking great idea (immediate local visual clues that the name's being looked up, ease of mocking/injecting in tests, ability to relo...
Cross Domain Form POSTing
...ript, then the same origin policy comes into play but if you post directly from the form i.e. the action points to a different server like:
<form action="http://someotherserver.com">
and there is no javascript involved in posting the form, then the same origin policy is not applicable.
S...
搭建高可用mongodb集群（三）—— 深入副本集内部机制 - 大数据 & AI - 清...
... will be spared here but that basic process is:
get maxLocalOpOrdinal from each server.
if a majority of servers are not up (from this server’s POV), remain in Secondary mode and stop.
if the last op time seems very old, stop and await human intervention.
else, using a consensus pro...