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How do you test a public/private DSA keypair?
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This solution seems to work for all types of SSH-keys. I even managed to recover a misplaced public key with this approach.
– Jari Turkia
Jun 13 '18 at 6:37
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How to convert an NSString into an NSNumber
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Use an NSNumberFormatter:
NSNumberFormatter *f = [[NSNumberFormatter alloc] init];
f.numberStyle = NSNumberFormatterDecimalStyle;
NSNumber *myNumber = [f numberFromString:@"42"];
If the string is not a valid number, then myNumber will be nil. If it is a valid number, then you now have all of...
What does the X-SourceFiles header do?
...in a WebForms project in VS2017 that doesn't use WebMatrixSupportModule at all (no WebMatrix-related DLLs are loaded by my IIS Express process).
– Dai
Oct 3 '19 at 7:42
add a ...
Android Studio: how to attach Android SDK sources?
...er clicking on "show package details" you will see whether sources are installed or not (as shown in below picture) if it is not installed do install and you are good.
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.NET: Simplest way to send POST with data and read response
...d reference RFC2616 (w3.org/Protocols/rfc2616/rfc2616.txt). Answers from jball and BFree follow that attempt.
– Chris Hutchinson
Nov 3 '10 at 15:30
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.htaccess rewrite to redirect root URL to subdirectory
...as surprised that nobody mentioned this:
RedirectMatch ^/$ /store/
Basically, it redirects the root and only the root URL.
The answer originated from this link
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How to check if a variable is not null?
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This check is actually not safe. If myvar is 0, false or any other falsy value the test will fail (if you only intend to check for not null). So only use this to check for not null if the variable can never have another falsy value.
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How to merge every two lines into one from the command line?
...utput is ansi colored. Tested on Ubuntu 13.04
– Leo Gallucci
Dec 9 '13 at 22:54
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@elgalu: Becaus...
Linux equivalent of the Mac OS X “open” command [closed]
...f diagnostics and warnings right into your terminal (even though nothing really went wrong). I usually have to do something like xdg-open <file> &> /dev/null & instead. Is there anything better than xdg-open in this regard?
– Suan
Nov 30 '11 at...
How do I convert a string to a number in PHP?
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You don't typically need to do this, since PHP will coerce the type for you in most circumstances. For situations where you do want to explicitly convert the type, cast it:
$num = "3.14";
$int = (int)$num;
$float = (float)$num;
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