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How to understand nil vs. empty vs. blank in Ruby
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answered May 20 '09 at 16:14
Corban BrookCorban Brook
20.7k44 gold badges2525 silver badges3434 bronze badges
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How do I get the day of the week with Foundation?
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216
NSDateFormatter *dateFormatter = [[[NSDateFormatter alloc] init] autorelease];
[dateFormatte...
How to work with complex numbers in C?
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int main() {
double complex z1 = 1.0 + 3.0 * I;
double complex z2 = 1.0 - 4.0 * I;
printf("Working with complex numbers:\n\v");
printf("Starting values: Z1 = %.2f + %.2fi\tZ2 = %.2f %+.2fi\n", creal(z1), cimag(z1), creal(z2), cimag(z2));
double complex sum = z1 + z2;
pr...
How to customize the background/border colors of a grouped table view cell?
...with the [UIColor colorWithPatternImage:] initializer). But I'll leave the 2.0 version of the answer here for anyone that needs it…
It's harder than it really should be. Here's how I did this when I had to do it:
You need to set the UITableViewCell's backgroundView property to a custom UIView ...
How do I pass parameters into a PHP script through a webpage?
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2 Answers
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How do I see active SQL Server connections?
I am using SQL Server 2008 Enterprise. I want to see any active SQL Server connections, and the related information of all the connections, like from which IP address, connect to which database or something.
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HTTP test server accepting GET/POST requests
...?key=val Returns given response headers.
https://httpbin.org/redirect/:n 302 Redirects n times.
https://httpbin.org/relative-redirect/:n 302 Relative redirects n times.
https://httpbin.org/cookies Returns cookie data.
https://httpbin.org/cookies/set/:name/:value Sets a simple cookie.
https://httpbin...
Serialize form data to JSON [duplicate]
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241
Here's a function for this use case:
function getFormData($form){
var unindexed_array = $...
How do you detect Credit card type based on number?
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29 Answers
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