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How do I check (at runtime) if one class is a subclass of another?
... and 1.0, if it's int then the convention is 0 to 255. I could go through all sorts of contortions to try and get the image to quack, but it's much more straight forward to just ask "are you a duck" and scale my operations accordingly.
– Omegaman
Mar 18 '14 at...
How much is too much with C++11 auto keyword?
...it` has an iterator type
// (don't really care which one in this context)
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In Java, what does NaN mean?
...ce
some undefined result. For example,
0.0 divided by 0.0 is arithmetically undefined. Taking the square root of a
negative number is also undefined.
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Why “no projects found to import”?
...ject into workspace". As the "root directory" I select the directory where all my .java (and .class) files are located. Eclipse writes me that "no projects are found to import". Why?
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Disable browser's back button
... not obliged to do AFAIK) they still provide a way to reload that page (usually after showing a warning dialog). So if you really don't want your users going back to that page, this may be worse, since the request for that page will HAVE to make its way all the way to the origin server. You will n...
How do I get the day of week given a date?
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Calendar math generally sucks because computers don't know what PTO is. In an effort to avoid teaching them I highly recommend obfuscating functions which determine whether it is currently a holiday or weekend.
– meawoppl...
Hidden features of WPF and XAML?
... trick to debug what is going on with bindings in any particular scenario. All you have to do is to reference System.Diagnostics namespace in WindowsBase assembly
xmlns:sd="clr-namespace:System.Diagnostics;assembly=WindowsBase"
and then add following to the binding expression:
<TextBlock Tex...
Android: ScrollView force to bottom
I would like a ScrollView to start all the way at the bottom. Any methods?
16 Answers
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PHP Composer update “cannot allocate memory” error (using Laravel 4)
... you should be committing your composer.lock file and doing a composer install on a production environment which is less resource intensive.
More details here:
https://github.com/composer/composer/issues/1898#issuecomment-23453850
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What does $$ mean in the shell?
... This does produce a number that varies from time to time... but if you call it repeatedly, it returns the same number. (The solution is to just use the time.)
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