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How to return multiple lines JSX in another return statement in React?
...rray, React will do that for you. See the following fiddle http://jsfiddle.net/mEB2V/1/. Again: Wrapping the two elements into a div/section will most likely be better long term.
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Get the distance between two geo points
... compute the cosine once for all comparisons).
For more info see: http://www.movable-type.co.uk/scripts/latlong.html
There is a nice reference implementation of the Haversine formula in several languages at: http://www.codecodex.com/wiki/Calculate_Distance_Between_Two_Points_on_a_Globe
...
What is Linux’s native GUI API?
...f dealing with screens, keyboards and pointer devices.
X Window defines a network protocol for communication, and any program that knows how to "speak" this protocol can use it. There is a C library called Xlib that makes it easier to use this protocol, so Xlib is kind of the native GUI API. Xlib i...
How to change the style of alert box?
..."Scipt requieres a better browser!")) document.location.href="http://www.mozilla.org";
}
leftJsConfirmUri = '';
rightJsConfirmUri = '';
/**
* Show the message/confirm box
*/
function showConfirm(confirmtitle,confirmcontent,confirmlefttext,confirmlefturi,confirmrighttext,confirmrighturi) {...
JavaScript variables declare outside or inside loop?
...of people verify them. @mkoistinen: I constructed a fairer test, jsfiddle.net/GM8nk. After running the script a several times in Chrome 5, I could see that there was no consistent winner. All three variations performed better than the others after a few refreshes. -1 from me, I'm afraid. Note, y...
CSS content property: is it possible to insert HTML instead of Text?
...ginal svg code :
*
*<svg width="200" height="60"
* xmlns="http://www.w3.org/2000/svg">
*
* <foreignObject width="100%" height="100%" x="0" y="0">
* <div xmlns="http://www.w3.org/1999/xhtml" style="color: blue">
* I am <pre>HTML</pre>
* </div>
* </...
POST data with request module on Node.JS
...ire('request');
request.post({
headers: {'content-type' : 'application/x-www-form-urlencoded'},
url: 'http://localhost/test2.php',
body: "mes=heydude"
}, function(error, response, body){
console.log(body);
});
...
How can I get the MAC and the IP address of a connected client in PHP?
... root 48K 2008-11-11 18:11 /usr/sbin/arp*
With command:
sudo chown root:www-data /usr/sbin/arp
you will get:
-rwxr-xr-x 1 root www-data 48K 2008-11-11 18:11 /usr/sbin/arp*
And because apache is a daemon running under the user www-data, it's now able to execute this command.
So if you now us...
How to break out of jQuery each Loop
... you must use return false;
Here is a Fiddle proving it:
http://jsfiddle.net/9XqRy/
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Hidden features of Perl?
...umented somewhere, or follow logically from the documented features, but nonetheless some are not very well known.
Update: Another nice one. Below the q{...} quoting constructs were mentioned, but did you know that you can use letters as delimiters?
$ perl -Mstrict -wle 'print q bJet another perl...