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Hidden features of Perl?

...mple, did you know that there can be a space after a sigil? $ perl -wle 'my $x = 3; print $ x' 3 Or that you can give subs numeric names if you use symbolic references? $ perl -lwe '*4 = sub { print "yes" }; 4->()' yes There's also the "bool" quasi operator, that return 1 for true expres...
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What are the differences between Generics in C# and Java… and Templates in C++? [closed]

... I'll add my voice to the noise and take a stab at making things clear: C# Generics allow you to declare something like this. List<Person> foo = new List<Person>(); and then the compiler will prevent you from putting thing...
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Why is printing to stdout so slow? Can it be sped up?

... wait for the write to actually complete I ran your file writing test on my machine, and with buffering, it also 0.05s here for 100,000 lines. However, with the above modifications to write unbuffered, it takes 40 seconds to write only 1,000 lines to disk. I gave up waiting for 100,000 lines to w...
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Amazon EC2, mysql aborting start because InnoDB: mmap (x bytes) failed; errno 12

... I met the same problem when I tried to run a wordpress on my micro instance without RDS. Adding a Swap page solved the problem for me. You can follow steps below to setup the swap space. If it still doesn't work for you, consider using the RDS service. ==============================...
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IIS_IUSRS and IUSR permissions in IIS8

... I hate to post my own answer, but some answers recently have ignored the solution I posted in my own question, suggesting approaches that are nothing short of foolhardy. In short - you do not need to edit any Windows user account privilege...
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Django South - table already exists

...e, you just need to run the initial migration as fake ./manage.py migrate myapp --fake make sure that the schema of models is same as schema of tables in database. share | improve this answer ...
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Programmatically selecting text in an input field on iOS devices (mobile Safari)

... Nothing in this thread worked for me, here's what works on my iPad: // t is the input field setTimeout(function() { t.setSelectionRange(0, 9999); }, 1); share | improve this an...
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Flask raises TemplateNotFound error even though template file exists

I am trying to render the file home.html . The file exists in my project, but I keep getting jinja2.exceptions.TemplateNotFound: home.html when I try to render it. Why can't Flask find my template? ...
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Launching Spring application Address already in use

I have this error launching my spring application: 25 Answers 25 ...
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Meteor test driven development [closed]

...pidly. The good news: you can use Node.js testing tools with Meteor. For my Meteor project, I run my unit tests with Mocha using Chai for assertions. If you don't need Chai's full feature set, I recommend using should.js instead. I only have unit tests at the moment, though you can write integrati...