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How to check if a file exists in Documents folder?
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objectAtIndex:0 can be now replaced with firstObject
– Govind
Nov 20 '13 at 8:39
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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...
SQL Server: Filter output of sp_who2
... sp
JOIN master.dbo.sysdatabases sd ON sp.dbid = sd.dbid
ORDER BY spid
Now you can easily add any ORDER BY or WHERE clauses you like to get meaningful output.
Alternatively, you might consider using Activity Monitor in SSMS (Ctrl + Alt + A) as well
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Could not find method compile() for arguments Gradle
Looked around for this solution for much too long now, and I'm not sure if I missed it or just misstyped something, but my Gradle script will not compile. I am migrating to Gradle, and am very new with it. I am very used to using Maven for dependency management, but Gradle seems best me for now. Fro...
Adding custom radio buttons in android
...;
</shape>
All the above 3 file code will be in drawable/ folder.
Now we also need Text Color Selector to change color of text accordingly.
radio_flat_text_selector.xml for text color selector
(Use color/ folder for this file.)
<?xml version="1.0" encoding="utf-8"?>
<selector xm...
How can I quantify difference between two images?
...*255/rng
Run the main function:
if __name__ == "__main__":
main()
Now you can put this all in a script and run against two images. If we compare image to itself, there is no difference:
$ python compare.py one.jpg one.jpg
Manhattan norm: 0.0 / per pixel: 0.0
Zero norm: 0 / per pixel: 0.0
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In PHP, can you instantiate an object and call a method on the same line?
...on of the statement (new Foo)->property - the value you are storing has nowhere to go because the object will no longer exist after that as it's not stored anywhere.
– thomasrutter
Aug 3 '15 at 1:14
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CodeIgniter: Create new helper?
...s and display it in a page. The arrays are generated by a module class. I know that its better not to include functions on 'views' and I want to know where to insert the functions file.
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Fast Bitmap Blur For Android SDK
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Ran into the known ArrayIndexOutOfBoundsException, and after some analysis, I believe it is caused by an incorrect optimization by the Dalvik VM. In the for loop immediately before the bad dereference, either the calculation of the rbs var...
iOS JavaScript bridge
...going to use both HTML5 in UIWebView and native iOS framework together. I know that I can implement communication between JavaScript and Objective-C. Are there any libraries that simplify implementing this communication? I know that there are several libraries to create native iOS apps in HTML5 and ...