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Measuring the distance between two coordinates in PHP
...To Longitude of target point in [deg decimal]
* @param float $earthRadius Mean earth radius in [m]
* @return float Distance between points in [m] (same as earthRadius)
*/
function haversineGreatCircleDistance(
$latitudeFrom, $longitudeFrom, $latitudeTo, $longitudeTo, $earthRadius = 6371000)
{
...
Pass a JavaScript function as parameter
...
You just need to remove the parenthesis:
addContact(entityId, refreshContactList);
This then passes the function without executing it first.
Here is an example:
function addContact(id, refreshCallback) {
refreshCallback();
// You can also pass arguments if you need to
...
What's the difference between git reset --mixed, --soft, and --hard?
...
@Nikhil Perhaps what you mean is that the original commit still exists, which is true. But the branch has been changed so that the commit is no longer part of the branch. Do we agree on that?
– Ned Batchelder
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generate days from date range
...bers (and thus about 274 years worth of dates), it runs in 0.0458 sec.
Incidentally, this is a very portable technique that works with most databases with minor adjustments.
SQL Fiddle example returning 1,000 days
share
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Getting a list of all subdirectories in the current directory
...
Do you mean immediate subdirectories, or every directory right down the tree?
Either way, you could use os.walk to do this:
os.walk(directory)
will yield a tuple for each subdirectory. Ths first entry in the 3-tuple is a direct...
Can I underline text in an Android layout?
How can I define underlined text in an Android layout xml file?
25 Answers
25
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How can I make a div stick to the top of the screen once it's been scrolled to?
...ement {
background-color: #c0c0c0;
position:fixed;
top:0;
width:100%;
z-index:100;
}
Edit: You should have the element with position absolute, once the scroll offset has reached the element, it should be changed to fixed, and the top position should be set to zero.
You can det...
What HTTP status response code should I use if the request is missing a required parameter?
...propiate based on the spec.
The 422 (Unprocessable Entity) status code means the server
understands the content type of the request entity (hence a
415(Unsupported Media Type) status code is inappropriate), and the
syntax of the request entity is correct (thus a 400 (Bad Reques...
How to set a default value for an existing column
...ey are relaxations; the opposite of a constraint! They make more things valid, not fewer.
– Roman Starkov
May 11 '13 at 12:06
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Get HTML code from website in C#
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The Idea of using regex for html or XML is VERY bad coding practice... Going in Your Way - we should use goto keyword everywhere...
– Lightning3
Jan 10 '15 at 0:24
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