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Inputting a default image in case the src attribute of an html is not valid?

...tatic.net/Img/unified/sprites.svg?v=e5e58ae7df45" alt="Stack Overflow logo and icons and such"> </object> </p> </body> </html> Since the first image doesn't exist, the fallback (the sprites used on this web site*) will display. And if you're using a re...
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Python multiprocessing pool.map for multiple arguments

... The answer to this is version- and situation-dependent. The most general answer for recent versions of Python (since 3.3) was first described below by J.F. Sebastian.1 It uses the Pool.starmap method, which accepts a sequence of argument tuples. It then au...
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How to get the current URL within a Django template?

... Django 1.9 and above: ## template {{ request.path }} # -without GET parameters {{ request.get_full_path }} # - with GET parameters Old: ## settings.py TEMPLATE_CONTEXT_PROCESSORS = ( 'django.core.context_processors.request',...
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How do I Disable the swipe gesture of UIPageViewController?

...I need to add a swipe gesture to the last view controller, but swipes are handled as if they belong to page view controller. I tried to do this both programmatically and via xib but with no result. ...
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NameValueCollection vs Dictionary [duplicate]

...e .ToLookup(o => [key], o => [value(s)]) if you have duplicate keys, and it should (?) behave like a readonly dictionary. – drzaus Mar 10 '15 at 14:31 6 ...
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Test PHP headers with PHPUnit

... The issue is that PHPUnit will print a header to the screen and at that point you can't add more headers. The work around is to run the test in an isolated process. Here is an example <?php class FooTest extends PHPUnit_Framework_TestCase { /** * @runInSeparateProcess ...
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Pointer vs. Reference

... Explain what you mean by arithmetic. A new user may not understand that you want to adjust what the pointer is pointing at. – Martin York Sep 22 '08 at 16:30 7 ...
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When do you use varargs in Java?

...at("This is an integer: %d", myInt); String.format("This is an integer: %d and a string: %s", myInt, myString); share | improve this answer | follow | ...
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When is finally run if you throw an exception from the catch block?

...is the finally block called? Before the throwing of e or is finally called and then catch? 7 Answers ...
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How to compare files from two different branches?

I have a script that works fine in one branch and is broken in another. I want to look at the two versions side-by-side and see what's different. Are there any ways to do this? ...