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Simple way to calculate median with MySQL
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How do you pull the variable output of your first code block into your second code block?
– Trip
Dec 20 '12 at 22:55
3
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How to check if an email address exists without sending an email?
...pting to validate an address the best approach is to use a simple regex to block obviously invalid addresses, and then send an actual email with a link back to your system that will validate the email was received. This also ensures that they user entered their actual email, not a slight typo that h...
How can I create a “Please Wait, Loading…” animation using jQuery?
...our
modal element will be visible */
body.loading .modal {
display: block;
}
And finally, the jQuery
Alright, on to the jQuery. This next part is actually really simple:
$body = $("body");
$(document).on({
ajaxStart: function() { $body.addClass("loading"); },
ajaxStop: functi...
node.js database [closed]
...s is a popular choice. What you're after is a database driver that doesn't block.
The databases you listed are all very different. Redis takes the idea of key-value storages and runs with it, adding a variety of data types and ways of querying data. People often note that redis scales down very we...
What is the best way to profile javascript execution? [closed]
...nsole.trace()
You need to call console.profileEnd () to end your profile block. See the console API here: http://getfirebug.com/wiki/index.php/Console_API
Blackbird
Blackbird (official site) also has a simpler profiler (can be downloaded from here)
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How can I get a user's media from Instagram without authenticating as a user?
...l, body {
font-size: 0;
line-height: 0;
}
a {
display: inline-block;
width: 25%;
height: 0;
padding-bottom: 25%;
background: #eee 50% 50% no-repeat;
background-size: cover;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></scrip...
Popstate on page's load in Chrome
...lder browsers ;)
if (!window.addEventListener)
return;
var blockPopstateEvent = document.readyState!="complete";
window.addEventListener("load", function() {
// The timeout ensures that popstate-events will be unblocked right
// after the load event occured, but n...
Access-Control-Allow-Origin wildcard subdomains, ports and protocols
...IfModule>
Just set the ACCESS_CONTROL_ROOT variable at the top of the block to your root domain and it will echo the Origin: request header value back to the client in the Access-Control-Allow-Origin: response header value if it matches your domain.
Note also that you can use sub.mydomain.com ...
What does @@variable mean in Ruby?
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I don't understand what the ruby class << self end block does, specifically the << operator.
– davidtingsu
Jun 4 '13 at 17:55
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how to stop browser back button using javascript
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Blocks back button on ipad air, ios 8
– plugincontainer
Jan 9 '18 at 17:42
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