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How to concatenate strings in twig

Anyone knows how to concatenate strings in twig? I want to do something like: 11 Answers ...
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How to print to console when using Qt

I'm using Qt4 and C++ for making some programs in computer graphics. I need to be able to print some variables in my console at run-time, not debugging, but cout doesn't seem to work even if I add the libraries. Is there a way to do this? ...
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Change Activity's theme programmatically

In particular cases I need to remove dialog theme from my activity but it doesn't seem to be working. Here's an example 4 A...
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PHP: How to handle

I noticed that when using SimpleXMLElement on a document that contains those CDATA tags, the content is always NULL . How do I fix this? ...
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Why are Where and Select outperforming just Select?

...and a + operation. Where+Select creates an iterator that skips invalid elements (doesn't yield them), performing a + only on the valid items. So, the cost for a Select is: t(s) = n * ( cost(check valid) + cost(+) ) And for Where+Select: t(ws) = n * ( cost(check valid) + p(valid) * (cost(...
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MySQL Creating tables with Foreign Keys giving errno: 150

... I had the same problem with ALTER TABLE ADD FOREIGN KEY. After an hour, I found that these conditions must be satisfied to not get error 150: The Parent table must exist before you define a foreign key to reference it. You must define...
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In Intellij, how do I toggle between camel case and underscore spaced?

...have two different style guides for java vs sql. In java I have a field named historyOfPresentIllness and when i write the sql, I want to name it history_of_present_illness . Is there a keyboard shortcut to switch from one to the other when I have the phrase highlighted? Or perhaps a plugin th...
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Instance variable: self vs @

Here is some code: 6 Answers 6 ...
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Why is using the JavaScript eval function a bad idea?

...ity to compile/cache eval'd code) Edit: As @Jeff Walden points out in comments, #3 is less true today than it was in 2008. However, while some caching of compiled scripts may happen this will only be limited to scripts that are eval'd repeated with no modification. A more likely scenario is that y...
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Proper way to rename solution (and directories) in Visual Studio

... Visual Studio solution (2010, but it shouldn't matter) that I need to rename. 18 Answers ...