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iPhone UITextField - Change placeholder text color

...olor blackColor]; textField.attributedPlaceholder = [[NSAttributedString alloc] initWithString:placeholderText attributes:@{NSForegroundColorAttributeName: color}]; } else { NSLog(@"Cannot set placeholder text's color, because deployment target is earlier than iOS 6.0"); // TODO: Add fall-back...
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How to convert boost path type to string?

... You just need to call myPath.string(). share | improve this answer | follow | ...
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Merge, update, and pull Git branches without using checkouts

I work on a project that has 2 branches, A and B. I typically work on branch A, and merge stuff from branch B. For the merging, I would typically do: ...
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How do I plot in real-time in a while loop using matplotlib?

... Did not work on Win64/Anaconda matplotlib.__version__ 1.5.0. An initial figure window opened, but did not display anything, it remained in a blocked state until I closed it – isti_spl Feb 4 '16 at 8:39 ...
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Random number generator only generating one random number

..., max); } } Edit (see comments): why do we need a lock here? Basically, Next is going to change the internal state of the Random instance. If we do that at the same time from multiple threads, you could argue "we've just made the outcome even more random", but what we are actually doing is ...
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How to obtain Signing certificate fingerprint (SHA1) for OAuth 2.0 on Android?

...p following the steps in https://developers.google.com/console/help/#installed_applications which leads me to follow http://developer.android.com/tools/publishing/app-signing.html . ...
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Upload artifacts to Nexus, without Maven

...=1.2.3 \ -Dpackaging=zip \ -Dfile=myproj.zip This will automatically generate the Maven POM for the artifact. Update The following Sonatype article states that the "deploy-file" maven plugin is the easiest solution, but it also provides some examples using curl: https://support.sonaty...
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Can I use git diff on untracked files?

...The upshot is that your "untracked" file now becomes a modification to add all the content to this zero-length file, and that shows up in the "git diff" output. git diff echo "this is a new file" > new.txt git diff git add -N new.txt git diff diff --git a/new.txt b/new.txt index e69de29..3b2ae...
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What does send() do in Ruby?

... some method reacts (because its name matches the first argument). Practically speaking, those lines are equivalent: 1.send '+', 2 1.+(2) 1 + 2 Note that send bypasses visibility checks, so that you can call private methods, too (useful for unit testing). If there is really no variable before...
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Split data frame string column into multiple columns

... Use stringr::str_split_fixed library(stringr) str_split_fixed(before$type, "_and_", 2) share | improve this answer | ...