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Big O, how do you calculate/approximate it?
Most people with a degree in CS will certainly know what Big O stands for .
It helps us to measure how well an algorithm scales.
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Securely storing environment variables in GAE with app.yaml
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@Ben Non-Firebase functions do support env vars (now, at least).
– NReilingh
Apr 1 '19 at 10:21
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Do interfaces inherit from Object class in java
...extends Object implicitly, hence when you do e.equals(null), the language knows that you have a class that is a subtype of employee.
The JVM will do runtime checking for your code (i.e. throw NullPointerException).
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Creating a ZIP Archive in Memory Using System.IO.Compression
... zipping without writing any file.
string fileName = "export_" + DateTime.Now.ToString("yyyyMMddhhmmss") + ".xlsx";
byte[] fileBytes = here is your file in bytes
byte[] compressedBytes;
string fileNameZip = "Export_" + DateTime.Now.ToString("yyyyMMddhhmmss") + ".zip";
using (var outStream = new Me...
Modular multiplicative inverse function in Python
...: I'm the current maintainer of the gmpy library.
Updated answer 2
gmpy2 now properly raises an exception when the inverse does not exists:
>>> import gmpy2
>>> gmpy2.invert(0,5)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ZeroDivisionEr...
Push Notifications in Android Platform
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it's in beta right now, but you can sign up in hopes of being activated.
– brack
Oct 6 '10 at 19:08
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Java ResultSet how to check if there are any results
...ately after to reset it, since it has positioned itself past the first row now.
It should be noted however, that Seifer's answer below is a more elegant solution to this question.
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How do I change Bootstrap 3 column order on mobile layout?
... I have been wondering what the push and pull classes are good for - now I know. Thanks.
– cdonner
May 25 '14 at 17:21
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jQuery Ajax error handling, show custom exception messages
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Am now in 2014. JSON dominated era. So i use xhr.responseJSON. :D
– Ravi
Dec 18 '14 at 20:09
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Searching subversion history (full text)
... It would be great if SvnQuery was still maintained but sadly it died and now it just doesn't work at all.
– Dan Atkinson
Aug 6 '15 at 17:17
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