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Using Default Arguments in a Function

...you can do what you want: function foo($blah, $x = null, $y = null) { if (null === $x) { $x = "some value"; } if (null === $y) { $y = "some other value"; } code here! } This way, you can make a call like foo('blah', null, 'non-default y value'); and have it ...
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Programmatically saving image to Django ImageField

...e os.path.basename bit) and a django.core.files.File object. Let me know if you have questions or need clarification. Edit: for the sake of clarity, here is the model (minus any required import statements): class CachedImage(models.Model): url = models.CharField(max_length=255, unique=True) ...
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ASP.NET MVC Relative Paths

...~/Scripts/jquery-1.2.6.js")%> make the server render the path, whereas, if you used "/Scripts/jquery-1.2.6.js", it would just be served straight up to the client, therefore, reducing one more thing the server has to do? I thought i read somewhere the more you can avoid having the server process,...
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jQuery `.is(“:visible”)` not working in Chrome

... or "inline-block" to make it work. Also note that jQuery has a somewhat different definition of what is visible than many developers: Elements are considered visible if they consume space in the document. Visible elements have a width or height that is greater than zero. In other words, an...
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OS X: equivalent of Linux's wget

...ng third-party software is not an option, for this has to run on a lot of different systems which I don't have control on). ...
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Why is there extra padding at the top of my UITableView with style UITableViewStyleGrouped in iOS7

... Although this "brute force" solution works, I think the bottom ones (specifically the automatically adjust insets) should be ranked higher. – eladleb Apr 2 '14 at 13:37 ...
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Case-insensitive string comparison in C++ [closed]

... std::string str1 = "hello, world!"; std::string str2 = "HELLO, WORLD!"; if (boost::iequals(str1, str2)) { // Strings are identical } share | improve this answer | fol...
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What specifically are wall-clock-time, user-cpu-time, and system-cpu-time in UNIX?

...and) would measure as having elapsed between the start of the process and 'now'. The user-cpu time and system-cpu time are pretty much as you said - the amount of time spent in user code and the amount of time spent in kernel code. The units are seconds (and subseconds, which might be microseconds...
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Force R not to use exponential notation (e.g. e+10)?

... methods listen to some options. Including 'scipen' -- a penalty for scientific display. From help(options): ‘scipen’: integer. A penalty to be applied when deciding to print numeric values in fixed or exponential notation. Positive values bias towards fixed and ne...
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How do I handle too long index names in a Ruby on Rails ActiveRecord migration?

...id", "subject_type_id"], :unique => true, :name => 'my_index' If using the :index option on references in a create_table block, it takes the same options hash as add_index as its value: t.references :long_name, index: { name: :my_index } ...