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Checking if sys.argv[x] is defined
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I love Python more and more, all thanks to answers like that and Stack Overflow of course! Too bad we don't have an explanation of last two lines. I believe for beginners that would be great.
– Goujon
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Merging: Hg/Git vs. SVN
...sed), while in Git and Mercurial it is simply commit objects that can have more than one parent.
"Known Issues" subsection for merge tracking in Subversion suggests that repeated / cyclic / reflective merge might not work properly. It means that with the following histories second merge might not d...
Ball to Ball Collision - Detection and Handling
...ther balls on the boundaries of a section, so this may make your code much more complicated. Efficiency probably won't matter until you have several hundred balls though. For bonus points, you can run each section on a different core, or split up the processing of collisions within each section.
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Hidden features of Windows batch files
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“Thinking in AngularJS” if I have a jQuery background? [closed]
...ing to work well. The view is the official record. Outside of a directive (more on this below), you never, ever, never change the DOM. And directives are applied in the view, so intent is clear.
Remember: don't design, and then mark up. You must architect, and then design.
Data binding
This is by...
Difference between BYTE and CHAR in column datatypes
...d setting in recent versions of Oracle. In this case, some characters take more than 1 byte to store in the database.
If you define the field as VARCHAR2(11 BYTE), Oracle can use up to 11 bytes for storage, but you may not actually be able to store 11 characters in the field, because some of them t...
Saving a Numpy array as an image
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Need a good hex editor for Linux [closed]
...or rescue files/partitions by hand. )
You can delete/insert bytes to file, more than once, without creating temp file.
DHEX is a more than just another hex editor: It includes a diff mode, which can be used to easily and conveniently compare two binary files. Since it is based on ncurses and is th...
PHP: How to send HTTP response code?
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I just found this question and thought it needs a more comprehensive answer:
As of PHP 5.4 there are three methods to accomplish this:
Assembling the response code on your own (PHP >= 4.0)
The header() function has a special use-case that detects a HTTP response line a...