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How to remove extension from string (only real extension!)
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Use PHP basename()
(PHP 4, PHP 5)
var_dump(basename('test.php', '.php'));
Outputs: string(4) "test"
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A positive lambda: '+[]{}' - What sorcery is this? [duplicate]
...ndidate: The conversion to the function pointer of the lambda.
The type of test in auto test = +[]{}; is therefore deduced to void(*)(). Now the second line is easy: For the second lambda/closure object, an assignment to the function pointer triggers the same conversion as in the first line. Even th...
How to calculate the bounding box for a given lat/lng location?
...oximation).
My implementation follows (It's written in Python; I have not tested it):
# degrees to radians
def deg2rad(degrees):
return math.pi*degrees/180.0
# radians to degrees
def rad2deg(radians):
return 180.0*radians/math.pi
# Semi-axes of WGS-84 geoidal reference
WGS84_a = 6378137...
How to access a preexisting collection with Mongoose?
I have a large collection of 300 question objects in a database test . I can interact with this collection easily through MongoDB's interactive shell; however, when I try to get the collection through Mongoose in an express.js application I get an empty array.
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jQuery Event Keypress: Which key was pressed?
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@Tim: Alas, I just tested this with Firefox using api.jquery.com/keypress : when I press <Tab>, e.which isn't set (remains 0), but e.keyCode is (9). See stackoverflow.com/questions/4793233/… why this matters.
– Mar...
Facebook App: localhost no longer works as app domain
... using localhost as an app domain seemed to work just fine. I was able to test my game both locally and on Heroku.
13 Answ...
How to run a JAR file
...e demonstration, but here's another one from scratch. You need two files:
Test.java:
public class Test
{
public static void main(String[] args)
{
System.out.println("Hello world");
}
}
manifest.mf:
Manifest-version: 1.0
Main-Class: Test
Note that the text file must end wit...
How to retrieve form values from HTTPPOST, dictionary or?
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The answers are very good but there is another way in the latest release of MVC and .NET that I really like to use, instead of the "old school" FormCollection and Request keys.
Consider a HTML snippet contained within a form tag that either does an AJAX or FORM POST.
<input ty...
Get selected value/text from Select on change
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function test(a) {
var x = (a.value || a.options[a.selectedIndex].value); //crossbrowser solution =)
alert(x);
}
<select onchange="test(this)" id="select_id">
<option value="0">-Select-</option>
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Why switch is faster than if
... between JVM's LookupSwitch and TableSwitch?
So as far as which one is fastest, use this approach:
If you have 3 or more cases whose values are consecutive or nearly consecutive, always use a switch.
If you have 2 cases, use an if statement.
For any other situation, switch is most likely faster, ...